Precision Works AOS Air Oil Separator - Subaru WRX 02-14 STI 04-21 (Black) fits_2019`Toyota`86`TRD Special Edition DSS Subaru 2004-2007 STI 6-Speed

DSS Subaru 2004-2007 STI 6-Speed (R180 Rear) 1-Piece Carbon Fiber Driveshaft SUSH2-C

Reduces boost creep and surge by giving your ECU tighter wastegate regulation

steering rack and lower control arms

Installation note: We can only guarantee to fit PLM brand

While the Gloss Black finish is available by special order

Precision Works AOS Air Oil Separator - Subaru WRX 02-14 STI 04-21 (Black) fits_2019`Toyota`86`TRD Special Edition DSS Subaru 2004-2007 STI 6-SpeedPrecision Works AOS Air Oil Separator Subaru WRX 02 07 STi 04 19 Air oil separator removes oil from engine ventilation system so the oil does not get into the intake system. Key Features: Retains OEM PCV valve Engine performs cleaner & efficiently Precision CNC machined 6061 billet aluminum High quality continental hose Includes fittings, caps, and zip ties Designed to work with the following Subaru: Subaru WRX 2002 2007 Subaru STI 2004 2021 Subaru