GrimmSpeed Bypass Valve RED - 2015-2021 Subaru WRX PDM_lug-nuts Sold as a set of

Sold as a set of 8 injectors

enhanced with JDM-inspired pie cuts

These will attach to the top of the rear coilover

AMS Performance Secondary Air Injection Adaptor Assembly - Volkswagen Golf R MK7 2015+ RallySport Direct proudly carries a great selection of quality performance upgrades brought to you by the record-setting team at AMS Performance

GrimmSpeed Bypass Valve RED - 2015-2021 Subaru WRX PDM_lug-nuts Sold as a set ofThe GrimmSpeed Bypass Valve: Engineered Specifically for the FA20DIT VA WRX The GrimmSpeed Bypass Valve in Red for the 2015 2021 Subaru WRX replaces the factory recirculating bypass valve on the FA20DIT with a unit specifically engineered for the FA20DIT's boost pressures and MAF based air management system. The GrimmSpeed valve recirculates compressor side pressure on throttle off events, preventing compressor surge without venting metered air to