Perrin - Subaru 08-14 WRX/STI - Air Oil Separator (Neon Yellow) subaru-ascent-2020 and add horsepower with the

and add horsepower with the Tomei Expreme Titanium Cat-Back Exhaust System

Tomioka Racing’s TD05-20G for Subaru now comes in a ball-bearing version

This tube upgrade is a direct replacement for the factory "accordion style" intake tube and bolts right up to the OE air intake system

Thermal Protections

layout (set up race

Perrin - Subaru 08-14 WRX/STI - Air Oil Separator (Neon Yellow) subaru-ascent-2020 and add horsepower with theOVERVIEW 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