Engines and Components› Engine Bearings

IAG

Air Oil Separator

$499.99

SKU: IAG-ENG-7186

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In Stock
Ships by Aug 2
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Description

This system employs a unique baffle design within its cast aluminum body, topped with nylon, to effectively separate oil from the crankcase ventilation system. Available in black, red, or neon yellow, it offers a customizable look for your engine bay. Designed for specific Subaru models, this AOS kit is compatible with 2008-2014 WRX, 2008-2021 STI, 2005-2009 Legacy GT, 2009-2013 Forester XT, and 2018-2021 Impreza models, all featuring the EJ 2.5L Turbo engine.

MIA's Description

It features a 1-liter cast aluminum swirl pot canister that enhances oil separation from the PCV system before gases return to the intake. The AOS incorporates an exclusive baffle design and superior ventilation. It works with all fuel types and optimizes crankcase ventilation without requiring ECU tuning.

Fitment

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Specifications

BrandIAG
Part NumberIAG-ENG-7186
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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