Quick view Details AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter MSRP: Now: $59.99 Add to Cart Compare Quick view Details K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake MSRP: Now: $349.99 Add to Cart Compare Quick view Details K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter MSRP: Now: $59.99 Add to Cart Compare Quick view Details Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet MSRP: Now: $39.00 Add to Cart Compare Quick view Details Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake MSRP: Now: $327.70 Choose Options Compare Quick view Details IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Details Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ MSRP: Now: $363.00 Add to Cart Compare Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake MSRP: Now: $349.99 Add to Cart Compare Quick view Details K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter MSRP: Now: $59.99 Add to Cart Compare Quick view Details Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet MSRP: Now: $39.00 Add to Cart Compare Quick view Details Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake MSRP: Now: $327.70 Choose Options Compare Quick view Details IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Details Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ MSRP: Now: $363.00 Add to Cart Compare Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter MSRP: Now: $59.99 Add to Cart Compare Quick view Details Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet MSRP: Now: $39.00 Add to Cart Compare Quick view Details Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake MSRP: Now: $327.70 Choose Options Compare Quick view Details IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Details Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ MSRP: Now: $363.00 Add to Cart Compare Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet MSRP: Now: $39.00 Add to Cart Compare Quick view Details Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake MSRP: Now: $327.70 Choose Options Compare Quick view Details IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Details Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ MSRP: Now: $363.00 Add to Cart Compare Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake MSRP: Now: $327.70 Choose Options Compare Quick view Details IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Details Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ MSRP: Now: $363.00 Add to Cart Compare Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare
Quick view Details Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ MSRP: Now: $363.00 Add to Cart Compare Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare
Quick view Details Process West Process West Intake Manifold Street Version - Subaru STI 2006+ MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare
Quick view Details ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) MSRP: Now: $45.00 Add to Cart Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL MSRP: Now: $295.00 Choose Options Compare Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM MSRP: Now: $495.00 Choose Options Compare Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 MSRP: Now: $3,225.00 Add to Cart Compare Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA MSRP: Now: $3,250.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI MSRP: Now: $429.00 Add to Cart Compare Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 MSRP: Now: $429.00 Add to Cart Compare Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI MSRP: Now: $371.45 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) MSRP: Now: $339.00 Add to Cart Compare Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake MSRP: Now: $349.00 Choose Options Compare Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box MSRP: Now: $373.95 Choose Options Compare Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake MSRP: Now: $350.95 Choose Options Compare Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Details GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) MSRP: Now: $80.00 Choose Options Compare Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view AEM Induction | sku: 28-50092 AEM 22-24 Subaru WRX / 19-21 STI 2.5L DryFlow Air Filter AEM Induction Drop In Replacement Air Filter 2022-2024 WRX / 2019-2021 STI AEM Dryflow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative... MSRP: Now: $59.99 Add to Cart Compare Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view K&N | sku: 69-8009TWR K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake K&N 2018 Subaru WRX STI H4-2.5L F/I Typhoon Performance Intake The K&N 69-8009TWR Typhoon air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Subaru WRX STI Turbo models. The restrictive... MSRP: Now: $349.99 Add to Cart Compare Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view K&N | sku: 33-5092 K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N 2019 Subaru WRX STI 2.5L F/I Replacement Air Filter K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority... MSRP: Now: $59.99 Add to Cart Compare Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Killer B Motorsport | sku: TIEJC84 Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet Killer B FP 84mm to 3in Coupler For Killer B Motorsport Extreme Flow HARD Turbo Inlet FP 84mm to 3 inch coupler for the Killer B Motorsport Extreme Flow HARD Turbo Inlet Vehicle Fitment 2004-2018 STi, 2012+ BRZ and FR-S, 2007 Legacy SpecB, 2015+ WRX,... MSRP: Now: $39.00 Add to Cart Compare Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Injen Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake Additionally, this SP intake includes a fully serviceable Injen SuperNano-Web dry air filter, which provides increased filter surface area allowing for greater airflow and... MSRP: Now: $327.70 Choose Options Compare Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view IAG IAG V3 Top Feed TGV Housings with Butterfly Pass Thru (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU (06-14 WRX, 07+ STI, 07-12 LGT, 09-13 FXT) INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features “Tumble Generator Housings,” which are designed to decrease cold... MSRP: Was: Now: $479.99 - $499.99 Choose Options Compare
Quick view Process West | sku: PWCAI07 Process West Cold Air Intake System - Subaru STI 2015+ The Process West Cold Air Intake is perfect for gaining more power from your EJ Subaru, not to mention the sound! The Cold Air Intake Kit is designed to replace the factory air intake and allow for a less restrictive airflow. Made of lightweight CNC... MSRP: Now: $363.00 Add to Cart Compare Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Process West Process West Intake Manifold Track Version Black (Reverse Throttle Position) - Subaru STI 2004+ The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance. What you see here is the result of years of research and testing, multiple... MSRP: Was: Now: $2,031.75 - $2,098.95 Choose Options Compare
Quick view Process West Process West Intake Manifold Street Version - Subaru STI 2006+ Intake Manifold DBW Stock Orientation (suits Subaru 06+ WRX/STI) - Raw or Black The Process West range billet manifolds is a no holds barred manifestation of what is possible under the hood of a WRX/STI when perfect aesthetics meet high end performance... MSRP: Was: Now: $2,520.00 - $2,650.00 Choose Options Compare
Quick view ETS | sku: SP-3606 ETS 2015+ SUBARU STI AIR FILTER (SP-3606) These are replacement filters for our ETS 2015+ Subaru STI Intake Kit. These K&N filters are designed specifically for our intake kits! This filter will replace both the stock MAF Intake Filter as well as the Speed Density Intake Filter... MSRP: Now: $45.00 Add to Cart Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT STAINLESS STEEL The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" stainless... MSRP: Now: $295.00 Choose Options Compare Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view ETS ETS SUBARU STI 2015+ AIR INTAKE KIT TITANIUM The ETS Cold Air Intake locates the filter in the fender well out of the engine bay. This makes for not only the coldest air possible but the most air possible. Our intake is made from high quality parts and built in house at our facility. 3" Titanium... MSRP: Now: $495.00 Choose Options Compare Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view COBB | sku: SUB004NG2S1-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2015-2018 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,225.00 Add to Cart Compare Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view COBB | sku: SUB004NG2S2-BK COBB TUNING SUBARU NEXGEN STAGE 2 POWER PACKAGE STI 2019-2021, 2018 TYPE RA 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO)... MSRP: Now: $3,250.00 Add to Cart Compare Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view aFe | sku: 56-70014D **Special Order** aFe Takeda Momentum Pro Dry S Cold Air Intake System 2018 - 2021 TI aFe Takeda Momentum Pro Dry S Cold Air Intake System 18-19 Subaru WRX STI H4-2.5L Dyno-Proven Gains up to +10 HP & +11 Lbs. x Ft. TQ Outflows Factory Intake by 49% Measured Flow: 305 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included... MSRP: Now: $429.00 Add to Cart Compare Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view aFe | sku: 56-70014R aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru STI 18-21 aFe Takeda Momentum Pro 5R Cold Air Intake System Subaru WRX STI 18-19 H4-2.5L Dyno-Proven Gains up to +19 HP & +21 Lbs. x Ft. TQ Outflows Factory Intake by 56% Measured Flow: 320 CFM @ 7" H2O Sealed Housing Captures Cool Air From Included Dynamic... MSRP: Now: $429.00 Add to Cart Compare Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view PERRIN | sku: PSP-INT-326BK Perrin COLD AIR INTAKE FOR 2018-2021 STI Increase horsepower and style under your hood. The PERRIN Cold Air Intake (CAI) system uses proper MAF alignment and tubing size, which are crucial for maintaining proper air-fuel ratios and preventing check engine lights that plague competitors... MSRP: Now: $371.45 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Killer B Motorsport | sku: EJTI-84 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 84mm/FP Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Killer B Motorsport | sku: EJTI-3 Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to 3in. Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and... MSRP: Now: $339.00 Add to Cart Compare Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Killer B Motorsport | sku: EJTI-OE Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Killer B EJ Cast Aluminum Turbo Inlet (KBM to OEM Coupler) Designed and Made in the USAMade from Heat Treated Cast Aluminumincludes Coupler for OEM or 3" Compressor InletDoes not require removal of Intake ManifoldIncludes Fittings for OEM and Aftermarket... MSRP: Now: $339.00 Add to Cart Compare Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view GrimmSpeed | sku: 060078. GrimmSpeed 2015+ Subaru STI Stealthbox Cold Air Intake ** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function... MSRP: Now: $349.00 Choose Options Compare Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Mishimoto Mishimoto 2015 - 2018 Subaru STi Performance Race Intake w/ Box Mishimoto 2015 Subaru STi Performance Race Intake w/ Box Direct fit for 2015-2018 Subaru STI Installs in under 30 minutes Larger-diameter intake pipe for large turbochargers and more aggressive engine tunes Exclusive optional airbox retains stock-like... MSRP: Now: $373.95 Choose Options Compare Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected × OK
Quick view Mishimoto | sku: MMAI-STI-15 Mishimoto 2015 - 2018 Subaru STi Performance Cold-Air Intake Direct fit for 2015-2018 Subaru STI Maximum gain: 20+ whp and 18 wtq Mandrel-bent aluminum pipe offered in polished, wrinkle black, and wrinkle red Includes heat shield to protect air intake from hot engine heat Rubber cap supplied for noise... MSRP: Now: $350.95 Choose Options Compare Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected
Quick view GrimmSpeed GrimmSpeed Post MAF Hose Kit - 02-14 WRX/STI, 18-20 STI (15-17 STI w/OEM Sound Tube Delete) Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you can get it out of your bay, the better. We’ve now got you covered with The GrimmSpeed Post MAF Hose... MSRP: Now: $80.00 Choose Options Compare 1 2 Next 1 2 Next Compare Selected