Turbo XS releases the first Hybrid Blow Off Valve designed specificallytuned for the 2008 Subaru WRX. The valve features an innovativere-circulation and vent to atmosphere operation. It has been tuned tooffer the best blend of vent to atmosphere and re-circulation withoutcheck engines lights, stumbling or the dreaded back fire issues thatare commonly associated with Blow OFF Valves and turbocharged cars thatuse Mass Air Flow configurations. Each kit will bolt directly to your WRX without any additional parts.