The IAG Performance V3 Street Series Air / Oil separator (AOS) is an excellent investment to keep your Subaru vehicle running well. The Street Series AOS maintains OEM PCV system functionality, but supplements its capacity. The Street Series AOS design is based on years of extensive testing on standard and competition applications. The Street Series AOS' large, 1-liter, cast aluminum swirl pot canister more effectively separates oil from the PCV system upstream of PCV gasses' return to the intake system. The Street Series AOS' fully-heated cast aluminum housing, superior venting, and unique baffle design set it apart from the rest. The Street Series AOS is compatible with all fuel types, extends engine life, improves crankcase ventilation and is compatible with standard ECU calibrations. The IAG AOS is designed to be maintenance free. Unlike traditional catch-can systems, our Air Oil Separators do not require regular draining and maintenance. Once the system is installed, there is no further maintenance required. Separated Oil collects on the walls of the AOS can and slowly drains out the bottom by gravity back into the engine's crankcase. Our special heating system keeps the collected oil free from sludge, ensuring that there is no risk in reintroducing the oil back into the engine. The large volume of the AOS body allows plenty of time for the oil to drain back without the danger of overflowing like some smaller catch cans.
- Keeps oil out of your intake for improved performance
