Perrin - Subaru 02-07 WRX/STI - Air Oil Separator (Black) subaru-forester-xt-2014 This catback exhaust transforms your

This catback exhaust transforms your sport compact into a tarmac-munching driving machine

Remove the overworked factory intercooler from your 2015+ STI in favor of the Black COBB Front Mount Intercooler Kit

upgrading to a 3-port solenoid does require tuning

The COBB Shift Plate for your 2015-2019 Subaru WRX is designed to reduce overall shift throw while maintaining an OEM-like feel

Perrin - Subaru 02-07 WRX/STI - Air Oil Separator (Black) subaru-forester-xt-2014 This catback exhaust transforms yourOVERVIEW 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