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Vendor:IAG PerformanceIAG Air / Oil Separator (AOS) For 08-14 Subaru WRX, 08-21 STI, 09-13 FXT, 05-09 LGT & OBXT
Only 3 leftRegular price $499.99Sale price $499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Air / Oil Separator (AOS) Fits 2015-21 Subaru WRX, 2014-18 FXT
Regular price $499.99Sale price $499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Air / Oil Separator (AOS) Fits 2022-26 Subaru WRX
Only 14 leftRegular price $499.99Sale price $499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Air / Oil Separator (AOS) Fits 2002-07 Subaru Impreza WRX, 2004-07 STI, 2004-08 FXT
Regular price $499.99Sale price $499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Multi-Directional Hose Clamp Pliers
Regular price $29.99Sale price $29.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Air / Oil Separator (AOS) For 2020-26 Outback XT, 2022-26 Outback Wilderness
Only 8 leftRegular price $499.99Sale price $499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Universal Air / Oil Separator (AOS)
Only 9 leftRegular price $499.99Sale price $499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG V3 Street Series AOS Replacement Hose Line & Hardware Install Kit For 06-07 WRX, 04-07 STI
Only 1 leftRegular price $229.99Sale price $229.99 Regular priceUnit price per -
Sold OutVendor:IAG PerformanceIAG Performance Universal Drag Catch Can
Regular price $579.99Sale price $579.99 Regular priceUnit price per
Air Oil Separators
Shop Subaru air oil separators (AOS) at IAG Performance for WRX, STI, Legacy GT, and Forester XT models, including our IAG Performance V3 Street and Competition series AOS systems. An air oil separator helps manage crankcase pressure and keep oil out of your intake system.