IAG Air Oil Separator AOS For 2015-21 Subaru WRX Competition Series Conversion Kit (RACE ONLY):IAG Performance Air Oil Separator AOS Street to Competition Series Conversion Kit For 2015-20 WRX Every cylinder head comes out

Every cylinder head comes out exactly the same and uses our race-proven

Unlike standard catch-can systems

(x3) Oil Drain Plug Washers

it will eventually boil and evaporate out of the system

8% higher than the OEM 12mm Oil Pump

IAG Air Oil Separator AOS For 2015-21 Subaru WRX Competition Series Conversion Kit (RACE ONLY):IAG Performance Air Oil Separator AOS Street to Competition Series Conversion Kit For 2015-20 WRX Every cylinder head comes outLEAD TIME 3 5 DAYS PROTECT YOUR INVESTMENT The IAG Performance V3 Street Series Air Oil Separator (AOS) is a valuable investment in maintaining optimal performance for your Subaru. The design of the Street Series AOS is the result of years of thorough testing on both standard and competition applications. This AOS consists of a 1 liter, cast aluminum swirl pot canister, which more effectively separates oil from the PCV system upstream of PCV gasses