IAG Air Oil Separator - Black

The IAG Air/Oil Separator (AOS) is a worthwhile investment to safeguard and enhance the performance of your Subaru. Developed through years of testing on standard and competitive applications, the IAG Air/Oil Separator offers unparalleled protection for your 2006-2007 Impreza WRX or 2004-2007 STI engine. Our AOS design incorporates a 1-liter cast aluminum swirl pot canister that significantly improves oil separation from the PCV system before returning PCV gasses to the intake. Constructed from a lightweight, yet durable aluminum housing, the IAG AOS offers improved ventilation and incorporates an intelligent baffle design that sets it apart from the competition. It is compatible with all fuel types, extends engine life, improves crankcase ventilation, and seamlessly integrates with standard ECU settings. The IAG Air/Oil Separator was designed for ease of use and unlike ordinary catch-can systems, our Air Oil Separators work without the need for routine draining or maintenance. The sep