Perrin - Subaru 15-21 WRX - Air Oil Separator Kit (Wrinkle Red) subaru-baja-turbo-2004 Works with Stock or Aftermarket

Works with Stock or Aftermarket Downpipes

Reduced turbo spool time and improved throttle response

Why not invest in the COBB Shifter Bushing Pack

Piping Coating: No

The COBB Tuning 3-Port BCS features 1/8" low-profile barb fittings to keep the unit compact and are nickel coated for corrosion resistance

Perrin - Subaru 15-21 WRX - Air Oil Separator Kit (Wrinkle Red) subaru-baja-turbo-2004 Works with Stock or AftermarketOVERVIEW The PERRIN Air Oil Separator traps oil from the crankcase vents before it enters the intake, reduces carbon build up, increases intercooler efficiency, which reduces the chance of performance robbing detonation. NO TUNING REQUIRED Increase horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU