Air and Fuel› Air Cleaners, Filters, Intakes and Components

IAG

1-Liter Air Oil Separator with Heater

$499.99

SKU: JGJS-IAG-ENG-7186NY

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

Developed through extensive testing, this AOS features a 1-liter swirl pot canister that enhances the separation of oil from the PCV system before gasses return to the intake.

This system optimizes crankcase ventilation and works with all fuel types. It integrates seamlessly with standard ECU settings, requiring no tuning. The AOS design minimizes condensation buildup by attaching to the vehicle's cooling system for consistent heating of the canister.
Show original supplier description
The IAG Performance Air Oil Separator (AOS) is a performance upgrade for your Subaru engine, meticulously developed to offer unparalleled protection. This system features a 1-liter swirl pot canister constructed from cast aluminum, significantly improving the separation of oil from the PCV system before gasses return to the intake. The AOS boasts an aluminum housing with superior ventilation and incorporates an exclusive baffle design that differentiates it from competing products. It operates maintenance-free, unlike typical catch-can systems. Separated oil is collected on the AOS can walls and gradually drains back into the engine's crankcase. A unique heating system ensures the collected oil remains free of sludge, preventing reintroduction into the engine. The substantial size of the AOS body allows for safe, gradual oil drainage, effectively preventing overflow issues common with smaller catch cans. This IAG AOS is compatible with a range of Subaru models including the Forester (2008-2013), Impreza (2008-2014), Legacy (2005-2009), Outback (2005-2009), WRX (2012-2014), and WRX STI (2013-2021). It comes with a Neon Yellow finish, includes all necessary hardware and hoses, and features 6 AN-style ports.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandIAG
Part NumberJGJS-IAG-ENG-7186NY
CategoryEngines and Components
5,000+ Trusted brands
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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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