Perrin - Subaru 02-07 WRX/STI - Air Oil Separator (Neon Yellow) subaru-ascent-2019 This kit is available with

This kit is available with either a Stealth Black or Sleek Silver cooler and includes the Mishimoto Lifetime Warranty

showing a 12°F temperature drop as well as a +6 whp and +8 wtq bolt-on power increase for our stock test vehicle

but because when they’re compressed

Our tall shifter stands about 2" higher than our normal Double Adjustable Shifter

Perrin - Subaru 02-07 WRX/STI - Air Oil Separator (Neon Yellow) subaru-ascent-2019 This kit is available withOVERVIEW 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