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IAG Air / Oil Separator (AOS) - Subaru WRX 2008-2014 / STi 2008-2021 / FXT 2009-2013 / LGT & OBXT 2005-2009
Lease for as low as $/week
IAG AIR / OIL SEPARATOR (AOS) FOR 08-14 SUBARU WRX, 08-21 STI, 09-13 FXT, 05-09 LGT & OBXT
SAFEGUARD YOUR SUBARU
The IAG Performance Air / Oil Separator (AOS) is a smart upgrade for your Subaru. Developed through years of meticulous testing on standard and competitive applications, the design of the AOS offers unparalleled protection for your engine. This AOS features a 1-liter swirl pot canister made of cast aluminum. This construction significantly enhances the separation of oil from the PCV system before the PCV gasses are directed back to the intake system. The Air Oil Separator features an aluminum housing that has superior ventilation, and it incorporates an exclusive baffle design that sets it apart from the competition. The IAG AOS works with all fuel types, optimizes crankcase ventilation, and seamlessly integrates with standard ECU settings, so no tuning is required.
KEEPS OIL OUT OF THE INTAKE
The presence of oil within the engine's intake tract brings about a range of adverse effects, so preventing oil from entering the engine intake is crucial for avoiding premature mechanical issues and maintaining optimal performance. Initially, the oil coats the internal components of the intake, intercooler, and piping, which can potentially harm or prematurely deteriorate rubber or silicone hoses, eventually leading to compromised connections. Once the oil enters the intake tract, it has access to the intake manifold and then the engine’s combustion chamber. Oil inside the chamber has the potential to trigger detonation, pre-ignition, excessive emissions, smoke generation, power loss, reduced fuel efficiency, and in extreme cases, severe engine damage or even complete engine failure.
NO MAINTENANCE NEEDED
The IAG AOS is designed for effortless upkeep. Unlike typical catch-can systems, our Air Oil Separators operate without the need for routine draining and maintenance. Separated oil gathers on AOS can walls and slowly drains into the engine's crankcase. With the help of our unique heating system, the collected oil remains free of sludge, ensuring that there is no risk of reintroducing it into the engine. The substantial size of the AOS body allows for a safe and gradual oil drainage process, effectively removing the chance of overflow commonly observed in smaller catch cans.
HOW DOES THE AOS OPERATE? WHAT’S INSIDE?
The IAG Air / Oil Separator features a unique baffle system that captures the oil suspended in your engine's PCV gasses, which are then able to drain back into the crankcase. The AOS body's inlet hoses are set up to create an internal gas vortex, which is then filtered through a series of baffles. The baffles gather the oil while enabling the gasses to exit from the upper part of the AOS canister. As the factory PCV remains active, this allows the engine to generate a vacuum in the AOS assembly to draw out even more of the PVC gasses.
IMPROVES UPON THE OEM PCV SYSTEM WITH NEW CHECK VALVE
The AOS integrates with the OEM PCV system, while also providing a boost to its capacity. The AOS directs PCV gasses to the intake manifold, using an upgraded OEM style PCV valve for additional suction and air-oil separation. For applications using ethanol fuel, the AOS provides protection against problems like fuel dilution of the engine's lubrication system.
MINIMIZES CONDENSATION BUILDUP
The IAG Air / Oil Separator uses a unique heating system to solve problems found in lesser catch cans. In inferior models, hot PCV gasses pass through a cold pathway, which causes condensation that mixes with the oil and causes sludge. IAG’s upgraded design attaches to the vehicle’s cooling system, allowing heat from the engine to transfer into the AOS canister. By warming the AOS canister to the engine's temperature, condensation and related buildup are greatly reduced or eliminated.
EASY INSTALLATION
Our engineers set out to make the system as easy to install as possible. The connection hoses at the canister are custom fitted SAE Quick Connection lines that are the exact length to reach the corresponding engine parts. The AOS is available in your choice of black, red or neon yellow to accent the engine bay of your Subaru.
SAE QUICK CONNECTION LINES
IAG’s Air / Oil Separator includes a full set of custom length SAE Quick Connection lines that not only simplify the installation of the AOS system, but they also reduce the chance of leakage because they offer a more reliable and secure connection than basic hose clamps. Once installed, our AOS system has a clean, factory-look that integrates seamlessly with your Subaru’s engine.
- Product Name: IAG Air / Oil Separator (AOS) For 08-14 WRX, 08-21 STI, 09-13 FXT, 05-09 LGT & OBXT
- Part Number: IAG-ENG-7186BK, IAG-ENG-7186RD, IAG-ENG-7186NY
- Material: Cast Aluminum with Nylon Top
- Color: Black, Red, Neon Yellow
- Package Includes: 1x Air / Oil Separator, 1x SAE Quick Connect Hose And Fitting Kit, 1x Mounting Bracket.
- Fitment: 2008-14 Subaru Impreza WRX EJ 2.5L, 2008-14 Impreza WRX STI EJ 2.5L, 2015-21 WRX STI EJ 2.5L, 2018 WRX STI Type RA EJ 2.5L, 2019 WRX STI S209 EJ 2.5L, 2009-13 Forester XT EJ 2.5L, 2005-09 Legacy GT EJ 2.5L, 2005-09 Outback XT EJ 2.5L
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.