IAG Air-Oil Separator (AOS) Fits 2022-24 Subaru WRX

This is IAG’s maintenance-free air oil separator for this chassis. It is a real PCV control piece, not just a can you have to keep emptying.

• Cast aluminum canister with internal baffling to pull oil out of the PCV stream
• Returns separated oil back to the crankcase so it stays street friendly
• Built for 2022-2024 Subaru WRX
• Helps keep oil out of the intake tract, intercooler, and charge piping

Why you’d want it: if the car sees spirited street driving, track time, or just long-term ownership where you want cleaner intake plumbing and better crankcase control, this is one of the better upgrades you can make.

This version keeps the OEM-style PCV strategy in place and is a good fit for a hard-driven street car that still needs to stay livable.

AOS Color: Choose Black, Red, Neon Yellow from the product options.