Subaru - 2018 - 2021 STI - Engine - Cooling - Low Boost Performance

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Verus Engineering
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sku: A0070A

Verus Engineering AOS Coolant Add On

MSRP:

Now: $69.95

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Subaru OEM
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sku: 909170064

Subaru OEM Radiator Hose Clamp Most Subaru Models

MSRP:

Now: $5.53

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Radium Engineering

Radium Engineering Y-Adapter Block Fittings

MSRP:

Now: $28.45

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BLOX Racing
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sku: BXCC-00003

BLOX RACING REPLACEMENT MOUNTING KIT FOR ELECTRIC SLIM FAN

MSRP:

Now: $8.00

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BLOX Racing

BLOX RACING HIGH PRESSURE RADIATOR CAP 1.3 BAR - TYPE A / TYPE B

MSRP:

Now: $22.40

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BLOX Racing
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sku: BXCC-50000

BLOX RACING CYLINDER 4 COOLANT FLOW UPGRADE KIT - SUBARU EJ-SERIES

MSRP:

Now: $80.00

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BLOX Racing
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sku: BXCC-01200-SI **Special Order**

BLOX RACING COOLANT PLUG - K-SERIES

MSRP:

Now: $22.40

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BLOX Racing
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sku: BXCC-00012 **Special Order**

BLOX RACING COOLANT EXPANSION TANK

MSRP:

Now: $52.80

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Mishimoto

Mishimoto 08-14 Subaru WRX / 08+ STI Silicone Radiator Hose Kit

MSRP:

Now: $123.95

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Mishimoto
|
sku: MMRAD-STI-08X

Mishimoto 2008 - 2019 Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator

MSRP:

Now: $421.95

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Mishimoto
|
sku: MMRAD-STI-08

Mishimoto 2008 - 2019 Subaru WRX/STi Manual Aluminum Radiator

MSRP:

Now: $372.95

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COBB
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sku: B22400-BK

COBB SUBARU SILICONE RADIATOR HOSES WRX 2008-2014, STI 2008-2020

MSRP:

Now: $110.00

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PERRIN
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sku: ASM-GAU-106 **Special Order**

Perrin Coolant Hose Adapter Subaru

MSRP:

Now: $31.45

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Killer B Motorsport
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sku: WPHV2

Killer B V2 High Flow Water Pump Housing EJ Series

MSRP:

Now: $139.00

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GrimmSpeed
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sku: 405322

GRIMMSPEED RADIATOR HOSE KIT, BLACK - 08-11 IMPREZA, 08-14 WRX, 08-21 STI, 09-10 FORESTER, 09-13 FXT

MSRP:

Now: $110.00

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GrimmSpeed
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sku: 405326

GrimmSpeed RADIATOR HOSE KIT, RED - 08-11 IMPREZA, 08-14 WRX, 08-18 STI, 09-10 FORESTER, 09-13 FXT

MSRP:

Now: $110.00

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Killer B Motorsport
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sku: DWR2-B

Killer B Dual Reservoir Tank (Wash / Coolant) for 08-14 Subaru WRX/STi - Black

MSRP:

Now: $449.00

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PERRIN

Perrin Coolant Overflow Tank

MSRP:

Now: $198.90

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Verus Engineering
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sku: A0070A

Verus Engineering AOS Coolant Add On

Verus Engineering AOS Coolant Add On 2013-2024 BRZ / 2022-2024 GR86 / 2015-2024 WRX / 2008-2021 STI Add a heater to the AOS to keep the unit from creating condensation build-up. This nasty slurry typically gets associated with catch cans. By increasing...

MSRP:

Now: $69.95
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Subaru OEM
|
sku: 909170064

Subaru OEM Radiator Hose Clamp Most Subaru Models

Subaru OEM Radiator Hose Clamp Most Subaru Models Here, you are looking at the Subaru OEM Radiator Hose Clamp. This component is available for those of you in need of a replacement for a damaged or lost clamp. Fitment: Subaru...

MSRP:

Now: $5.53
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Radium Engineering

Radium Engineering Y-Adapter Block Fittings

A one piece CNC machined 6061 aluminum adapter that ensures the most direct path for unrestricted flow. Lightweight and compact for tight areas, the Y-fittings secure directly to hose ends without the need for extra adapter fittings. Type-II green...

MSRP:

Now: $28.45
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BLOX Racing
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sku: BXCC-00003

BLOX RACING REPLACEMENT MOUNTING KIT FOR ELECTRIC SLIM FAN

BLOX Racing Mounting Kit for Electric Slim Fan The BLOX Racing fan mounting kit is available separately for enthusiasts needing a replacement kit after servicing or disassembling the electric fan. BLOX Racing high performance electric slim fans are an...

MSRP:

Now: $8.00
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BLOX Racing

BLOX RACING HIGH PRESSURE RADIATOR CAP 1.3 BAR - TYPE A / TYPE B

Even when coolant begins to heat up, pressure begins to build inside the radiator. BLOX Racing’s high pressure radiator caps ensure that this pressure is properly relieved so excess heat is spent and fluids flow into the overflow tank...

MSRP:

Now: $22.40
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BLOX Racing
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sku: BXCC-50000

BLOX RACING CYLINDER 4 COOLANT FLOW UPGRADE KIT - SUBARU EJ-SERIES

BLOX Racing Coolant Flow Upgrade Kit is specifically intended for the Subaru EJ20 and EJ25 left hand cylinder head’s #4 cylinder. Longtime Subaru enthusiasts and tuners know the inherent cooling design oversight in Subaru’s left hand cylinder...

MSRP:

Now: $80.00
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BLOX Racing
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sku: BXCC-01200-SI **Special Order**

BLOX RACING COOLANT PLUG - K-SERIES

The BLOX Racing Coolant Hose Plug is CNC-machined from high quality billet aluminum. Each one is then anodized in black or silver for durability. Each plug comes with durable O-ring and thermostat set-screw. With Honda K-series builds becoming more...

MSRP:

Now: $22.40
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BLOX Racing
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sku: BXCC-00012 **Special Order**

BLOX RACING COOLANT EXPANSION TANK

BLOX Racing coolant expansion tanks are designed to catch coolant overflow and properly re-circulate it back to the radiator. The proper re-circulation ensures that your engine continues to operate at safe temperatures. BLOX Racing coolant...

MSRP:

Now: $52.80
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Mishimoto

Mishimoto 08-14 Subaru WRX / 08+ STI Silicone Radiator Hose Kit

PRODUCT FEATURES Direct fit for the 2008–2014 Subaru WRX and 2008–2019 Subaru STI Max temperature of 330°F Efficiently reduces heat Increases pressure tolerance OEM replacement fit Available in black, blue, or red Mishimoto Lifetime...

MSRP:

Now: $123.95
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Mishimoto
|
sku: MMRAD-STI-08X

Mishimoto 2008 - 2019 Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator

Direct fit for the 2008-2014 Subaru WRX, and 2008+ STI Premium radiator has 3-row (2" thick) core for improved strength and reliability. 16% thinner-than-stock tubes allow for more surface contact, increasing cooling efficiency. Greater density of rows...

MSRP:

Now: $421.95
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Mishimoto
|
sku: MMRAD-STI-08

Mishimoto 2008 - 2019 Subaru WRX/STi Manual Aluminum Radiator

Direct fit for the 2008-2014 WRX and 2008-2019 STI Full aluminum construction including durable, TIG-welded end tanks Two-row, 1.65" thick brazed aluminum core Increased fluid capacity and optimal heat dissipation Provides efficient temperature...

MSRP:

Now: $372.95
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COBB
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sku: B22400-BK

COBB SUBARU SILICONE RADIATOR HOSES WRX 2008-2014, STI 2008-2020

Cobb 08-14 Subaru WRX / 08-18 STI Silicone Radiator Hoses Replace your old, dried out factory radiator hoses with the COBB Tuning Silicone Radiator Hoses. Constructed of 3-ply reinforced silicone, these hoses will not only look better but also last...

MSRP:

Now: $110.00
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PERRIN
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sku: ASM-GAU-106 **Special Order**

Perrin Coolant Hose Adapter Subaru

The PERRIN Coolant Hose Adapter is essential for proper and easy installation of your water temperature sensors. When installing your water temperature sensor to your coolant lines, you will most likely have to modify your lines in order to get a sensor...

MSRP:

Now: $31.45
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Killer B Motorsport
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sku: WPHV2

Killer B V2 High Flow Water Pump Housing EJ Series

Killer B V2 High Flow Water Pump Housing EJ Series Killer B’s Water Pump Housing is a much more robust design. Designed using state of the art 3-D CAD software to assure maximum flow with minimum turbulence for the best performance possible! 3D...

MSRP:

Now: $139.00
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GrimmSpeed
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sku: 405322

GRIMMSPEED RADIATOR HOSE KIT, BLACK - 08-11 IMPREZA, 08-14 WRX, 08-21 STI, 09-10 FORESTER, 09-13 FXT

Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As your Subaru ages and the integrity of those hoses degrades, cracks develop and you can suddenly find yourself stranded...

MSRP:

Now: $110.00
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GrimmSpeed
|
sku: 405326

GrimmSpeed RADIATOR HOSE KIT, RED - 08-11 IMPREZA, 08-14 WRX, 08-18 STI, 09-10 FORESTER, 09-13 FXT

Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As your Subaru ages and the integrity of those hoses degrades, cracks develop and you can suddenly find yourself stranded...

MSRP:

Now: $110.00
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Killer B Motorsport
|
sku: DWR2-B

Killer B Dual Reservoir Tank (Wash / Coolant) for 08-14 Subaru WRX/STi - Black

Killer B Dual Reservoir Tank (Wash / Coolant) for 08-14 Subaru WRX/STi - Black This product was designed to create more space in the engine compartment. Combining two reservoirs into a single component frees up space for intercooler tube placement,...

MSRP:

Now: $449.00
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PERRIN

Perrin Coolant Overflow Tank

Replace your ugly OEM plastic coolant overflow tank with a sleek, metal PERRIN Coolant Overflow Tank! Durable aluminum construction Wrinkle black powder-coated finish Adds clearance for aftermarket intercooler piping Universal design will work with...

MSRP:

Now: $198.90
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