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

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

The included billet turbo adapter and 5-ply silicone make for a straightforward and leak-free installation and are compatible with both the factory bypass valve and COBB LF BPV

but because when they’re compressed

As standard practice

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