The IAG Air / Oil Separator (AOS) is a smart move to protect and enhance your Subaru's performance. Developed over years of extensive testing on a range of standard and competitive applications, the IAG AOS offers unparalleled protection for your 2020+ Subaru Outback XT and 22+ Outback Wilderness. Our exclusive 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. Crafted from a lightweight yet durable aluminum housing, the IAG AOS provides enhanced ventilation and features an innovative baffle design that sets it apart from the competition. This AOS is compatible with all fuel types, prolongs the lifespan of your engine, improves crankcase ventilation and features our innovative baffle design that sets it apart from competitors’ products.
Oil seeping into the engine's intake tract can have detrimental effects. It is vital to prevent oil from entering the engine intake to avoid premature mechanical issues and uphold optimal performance in your Subaru. Oil coated components in the intake, intercooler, and plumbing can cause rubber and silicone hose connections to deteriorate. Once inside the intake tract, the oil can affect the intake manifold and then the engine’s combustion chamber, potentially triggering detonation, pre-ignition, excessive emissions, smoke, power loss, reduced fuel efficiency, and even engine damage or complete engine failure.
Unlike ordinary catch-can systems, the IAG Air / Oil Separator functions without the need for routine draining or maintenance. The oil separated by the AOS gathers along the canister walls, gradually draining into the engine's crankcase. The spacious design of the IAG AOS prevents overflow by facilitating slow drainage, whereas smaller catch cans may struggle to keep pace and often need manual draining. Our exclusive heating system ensures that the collected oil stays clear of sludge, minimizing the risk of reintroducing it into the engine.