Perrin - Subaru 15-21 WRX - Air Oil Separator Kit (Wrinkle Red) subaru-baja-turbo-2004 Reduced turbo spool time and

Reduced turbo spool time and improved throttle response

Why not invest in the COBB Shifter Bushing Pack

external wastegate uppipe

PRO-KIT + ANTI-ROLL-KIT = PRO-PLUS

Perrin - Subaru 15-21 WRX - Air Oil Separator Kit (Wrinkle Red) subaru-baja-turbo-2004 Reduced turbo spool time andOVERVIEW 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