View IAG AIR / Oil Separator (AOS) - 2022-2024 Subaru WRX (VB) MSRP: Now: $499.99 Was: The Ultimate Engine Defense for the Direct-Injected FA24On turbocharged engines like the 2.4L FA24 in the 2022-2024 WRX, aggressive driving forces oil mist and crankcase vapors back into the intake... MSRP: Now: $499.99 Was: View