The IAG Air / Oil Separator (AOS) is a sensible investment for protecting and improving the performance of your Subaru. The IAG Air / Oil Separator, developed after years of testing on standard and competitive applications, provides exceptional engine protection for your 2006-2007 Impreza WRX or 2004-2007 STI. Our AOS design includes a 1-liter cast aluminum swirl pot canister, which greatly enhances oil separation from the PCV system before returning PCV gases to the intake. The IAG AOS, built from a lightweight yet sturdy aluminum housing, provides enhanced ventilation and features an innovative baffle design that distinguishes it from the competition. It works with any fuel type, increases engine life, improves crankcase ventilation, and interacts easily with conventional ECU settings.
Features:
- Product Name: IAG Air / Oil Separator (AOS) Fits 2006-07 Subaru Impreza WRX & 2004-07 STI
- Part Number: IAG-ENG-7185
- Material: Cast Aluminum
- Color: Neon Yellow
- Package Includes: 1x Air / Oil Separator, 1x Hose And Fitting Kit, 1x Mounting Bracket
- Fitment: 2006-07 Subaru Impreza WRX & 2004-07 STI
Prevent Oil Leaks Onto Intake
Oil entering the engine's intake tract can have a variety of negative consequences. Preventing oil from entering the engine intake is critical for preventing premature mechanical problems and maintaining peak performance in your Subaru. The oil can cover the interior components of the intake, intercooler, and piping, causing deterioration of the rubber and silicone hoses and eventually compromising the connections. Once within the intake tract, the oil can enter the intake manifold and subsequently the engine's combustion chamber, potentially resulting in detonation, pre-ignition, excessive emissions, smoke, power loss, lower fuel economy, and even engine damage or failure.
Low Maintenance Mod
The IAG Air / Oil Separator was developed for ease of use, and unlike traditional catch-can systems, it does not require routine draining or maintenance. The separated oil gathers along the walls of the AOS container before gently draining into the engine's crankcase. The oversized AOS body allows the oil to drain slowly, avoiding the risk of overflow found in smaller catch cans. Our innovative heating technology keeps the accumulated oil free of sludge, decreasing the danger of reintroducing it into the engine.
What's Inside?
The IAG Air / Oil Separator employs a novel baffle system to collect and drain oil from your engine's PCV gasses back into the crankcase. The AOS body's inflow hoses generate an internal gas vortex, which filters through the baffles, retaining the oil and allows the gas to escape from the top of the canister. Because the OEM PCV is still operating, the engine can create greater vacuum, which aids in the removal of more PCV gases.
Light Weight Design
The IAG Air / Oil Separator is made of lightweight, yet sturdy aluminum housing that is lighter than any of our previous models. Whether you drag race or take your Subaru to the track, we understand that every ounce of weight counts. This AOS design has been lightened and tuned to improve your Subaru's overall performance, ensuring you get the most out of each race or track day.
Lower Condensation Build Up
The IAG Air / Oil Separator uses an innovative heating technology to eliminate difficulties inherent in lower-quality catch cans. Poorly built versions let hot PCV gases to travel into the cold route, causing condensation to combine with the oil and form sludge. IAG's improved design connects to the vehicle's cooling system, allowing heat from the engine to enter the AOS canister. Condensation and related accumulation are considerably reduced or avoided by heating the AOS canister to the same temperature as the engine.
SAE Quick Connection Lines
IAG's Air / Oil Separator contains a full set of custom length SAE Quick Connection lines, which ease AOS system installation and reduce leakage by providing a more reliable and secure connection than standard hose clamps. Once installed, our AOS system has a polished factory-like appearance that complements your Subaru's engine.
Simple Installation
Our engineers aimed to make the system as simple to install as feasible for the 2006-2007 Subaru Impreza WRX and 2004-2007 STI. The canister's connecting hoses are custom-fitted SAE Quick connecting lines that are exactly the right length to reach the engine parts. On Subaru models, the IAG Air / Oil Separator comes with pre-cut and crimped hoses as standard. The IAG AOS is available in black, red, or bright yellow to precisely accent your Subaru's engine compartment.