IAG Performance Oil Catch Cans and Air / Oil Separators (AOS) are designed to reduce oil vapor and blow-by entering the intake system on turbocharged Subaru engines. By separating oil from crankcase ventilation gases, these systems help maintain consistent fueling, reduce carbon buildup, and support long-term engine reliability. Below you’ll find available IAG Performance AOS and catch can options for WRX, STI, and other Subaru platforms. Selection depends on engine type, vehicle use (street vs competition), and local emissions requirements.
Shop IAG Performance Oil Catch Cans by Application
Early EJ-Series Applications
Later EJ-Series Applications
FA20 WRX Applications
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IAG Air / Oil Separator (AOS) Fits 2002-07 Subaru Impreza WRX, 2004-07 STI, 2004-08 FXT
$499.99BlackNeon YellowRed -
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IAG Air / Oil Separator (AOS) For 08-14 Subaru WRX, 08-21 STI, 09-13 FXT, 05-09 LGT & OBXT
$499.99BlackNeon YellowRed -
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This product has multiple variants. The options may be chosen on the product page
