Perrin - Subaru 02-07 WRX/STI - Air Oil Separator (Red) subaru-ascent-2024 venting too much air can

venting too much air can make the throttle less responsive

NOTE: LUG NUTS ARE MADE WITH TAPERED BOTTOMS SPECIFICALLY FOR AFTERMARKET WHEELS

whereas triples are all solid discs and not recommended for street use

Hyper Twin Organic Clutch

Larger Piston Diameter (22mm O

Perrin - Subaru 02-07 WRX/STI - Air Oil Separator (Red) subaru-ascent-2024 venting too much air canOVERVIEW 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