PERRIN Black Air Oil Separator - Subaru WRX 2002-2021 / STi 2004-2021 RS74-66 Optional extras are available: there

Optional extras are available: there is a Link pipe set in titanium for the Slip-On Line Race (Titanium) upgrade

If users consent to upload their charging data to the App

A strong sidewall and tread deliver precise and immediate cornering response

The external fin pack is dense for maximum heat transfer

designed intake tubes are engineered to unleash all available horsepower and to fit perfectly

PERRIN Black Air Oil Separator - Subaru WRX 2002-2021 / STi 2004-2021 RS74-66 Optional extras are available: thereThe PERRIN Air Oil Separator removes oil vapors from crankcase gases before they reach the intake manifold. Its ceramic coated, CNC machined design reduces carbon buildup and supports engine health. Reduce Carbon Buildup Crankcase blow by, made up of oil particles and air, is recirculated into the intake. The PERRIN Air Oil Separator captures the oil before it reaches the intake tract, which helps limit carbon buildup in the valves and combustion