Turbo XS 02-07 WRX/ 04-09 STi 50/50 Racing Bypass Valve

TurboXS releases the first Hybrid Blow Off Valve!. The valve features an innovative re-circulation and vent to atmosphere operation. It has been tuned to offer the best blend of vent to atmosphere and re-circulation without check engines lights, stumbling or the dreaded back fire issues that are commonly associated with Blow OFF Valves and turbocharged cars that use Mass Air Flow configurations.
Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.