Pay in 4 interest-free payments of $37.38 Learn more
Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
or 06-08 Forester
the S-FLO Carbon Lid floats effectively against harsh engine movement
and lightweight GR5 titanium construction
It boasts a CNC billet compressor wheel for long-lasting durability and a Multi-Rate Billet Actuator for precision boost control
GrimmSpeed V2 Bypass Valve - Red - 2004-2021 Subaru STI / 2002-2007 WRX PDM_brand-merchandise or 06-08 ForesterGrimmSpeed V2 Bypass Valve (Red) , 2004 2021 Subaru STI 2002 2007 WRX The GrimmSpeed V2 Bypass Valve in red for the 2004 2021 Subaru STI 2002 2007 WRX replaces the factory recirculating bypass valve with a performance unit that provides more consistent venting of boost pressure during throttle lift events. The factory bypass valve is adequate at stock boost levels but can become a limitation , or fail , as boost pressure increases with modifications.