IAG Air / Oil Separator (AOS) For 2022+ Subaru WRX
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IAG Air / Oil Separator (AOS) For 2022+ Subaru WRX
- Usually Ships in 24 to 72 Hours
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IAG Air / Oil Separator (AOS) For 2022+ Subaru WRX
IAG V3 STREET SERIES AIR OIL SEPARATOR (AOS) FOR 2022+ SUBARU WRX
PROTECT YOUR INVESTMENT
The IAG Performance V3 Street Series Air / Oil separator (AOS) is an excellent investment to keep your Subaru vehicle running well. The Street Series AOS maintains OEM PCV system functionality, but supplements its capacity. The Street Series AOS design is based on years of extensive testing on standard and competition applications. The Street Series AOS' large, 1-liter, cast aluminum swirl pot canister more effectively separates oil from the PCV system upstream of PCV gasses’ return to the intake system. The Street Series AOS' fully-heated cast aluminum housing, superior venting, and unique, patent pending, baffle design set it apart from the rest. The Street Series AOS is compatible with all fuel types, extends engine life, improves crankcase ventilation and is compatible with standard ECU calibrations.
KEEPS OIL OUT OF THE INTAKE
Keeping oil out of the engine intake tract is extremely important towards preventing premature mechanical failure and maintaining performance. Oil in the intake tract of the engine has several detrimental effects. First, the oil coats the internal portions of the intake, intercooler, and piping. This oil may cause premature failure of rubber or silicone hoses, which leads to failed connections.
Once the oil reaches the intake tract it will directly enter the intake manifold and then the combustion chamber of the engine. Oil inside of the combustion chamber can cause detonation and preignition, high emissions, smoke, loss of power, decreased gas mileage, and even catastrophic engine failure, leading to expensive repair bills.
The IAG AOS is designed to be maintenance free. Unlike traditional catch-can systems, our Air Oil Separators do not not require regular draining and maintenance. Once the system is installed there is no further maintenance required. Separated Oil collects on the walls of the AOS can and slowly drains out the bottom by gravity back into the engine's crankcase. Because of our unique heating system the captured oil does not contain sludge, so there’s no danger to recirculating the oil back into the engine.The large volume of the AOS body allows plenty of time for the oil to drain back without the danger of overflowing like some smaller catch cans.
HOW DOES THE AOS WORK? WHAT’S INSIDE?
The IAG Air Oil Separator features a unique baffle system to allow the oil suspended in your engine’s PCV gasses to collect and drain back to the crankcase. The position of each inlet hose on one side of the AOS body helps to create a “swirl” of the gasses inside. As the gasses enter they swirl around the inside of the AOS body and are funneled through a series of baffles. Each of these surfaces helps to collect oil while allowing the gasses to escape from the top of the AOS. Because the OEM PCV operation is maintained, the engine also pulls vacuum on the AOS assembly to further evacuate the PCV gasses.
MAINTAINS THE FUNCTION OF THE OEM PCV SYSTEM
The Street Series AOS maintains the OEM PCV system functionality, but supplements its capacity. The Street Series AOS PCV discharge gasses return to the turbo inlet, retaining a PCV valve to draw additional suction, improving air oil separation. The Street Series AOS protects from oil dilution and lubrication failures in ethanol fueled application because the Street Series AOS captures fuel vapors out of the oil and returns these vapors to the intake tract for combustion. The Street Series AOS protects from both oil entrainment in the intake flow and oil dilution in the engine's lubrication system far better than the OEM PCV system alone.
HEATED TO REDUCE CONDENSATION BUILDUP
The IAG Street Series Air Oil Separator features a unique heating system to solve a common issue with inferior catch cans. By attaching the AOS to the vehicle’s cooling system we are able to transfer the heat from the engine into the AOS. When the hot PCV gasses travel through a cold hose condensation forms inside. Over time this condensation mixes with the oil in the system and causes sludge. By heating the AOS body to the same temperature as the engine, the condensation, and the associated buildup, is reduced or nearly eliminated.
EASY, PLUG AND PLAY INSTALLATION
For the 2022+ Subaru WRX our engineers set out to make the system as easy to install as possible. We’ve developed specially designed custom injection molded fittings to connect to the unique breather ports of the 2022+ Subaru WRX. These fittings are plug-and-play to the OEM breather ports, so no modifications are required to the fittings. The AOS is offered in your choice of three colors to accent your engine bay.
- Product Name: IAG Performance V3 Street Series Air Oil Separator (AOS) for 2022+ Subaru WRX
- Part Numbers: IAG-ENG-7183BK, IAG-ENG-7183RD, IAG-ENG-7183NY
- Material: Cast Aluminum
- Color: Black, Red, Neon Yellow
- Kit Includes: 1x Air Oil Separator, Plug and Play Hoses and Fittings, 1x Mounting Bracket
- Fitment: 2022+ Subaru WRX
Q: Why do I need an AOS?
A: In stock configuration, the un-baffled crankcase pressure is re-circulated back into the intake stream.
This can be harmful for two reasons:
1. Oil vapor mixed with the intake air effectively lowers the overall octane rating of your fuel. The more oil vapor that is sucked back into the engine, the more likely you are to experience engine knock (also referred to as detonation) that can destroy an engine.2. Oil vapors cause oil & carbon build up over time. The intercooler, intake manifold & intake valves suffer the worst. This oil vapor can create air turbulence that leads to various running issues.
Q: What are the factors that cause oil in the crankcase vent system (CCVS)?
A: There are a variety of factors that determine how much oil will be in the CCVS. The most significant of these factors are boost pressure, piston to cylinder wall clearance and oil viscosity. Smaller factors include ambient temperature, engine temperature, piston ring condition, and valve guide condition.
Q: What's the difference between a catch can & the IAG AOS?
A: Catch cans are an air/oil separator that does not actively drain the collected oil back into the engine lubrication system. Most catch cans require you to drain the contents out manually. By nature, a turbocharged boxer engine will produce significantly more oil in the CCVS than other engines of similar displacement.
Q: Which AOS is right for my vehicle?
A: The Street Series AOS maintains or improves the functionality of the original PCV system and may be installed on street driven vehicles subject to EPA emissions standards. The Street Series AOS provides optimal oil separation and venting performance for vehicles, including unregulated competition applications, up to 600 WHP and those fueled by E85 or other high-ethanol fuel blends. The Street Series AOS protects from ethanol caused oil dilution and resulting extremely frequent oil change requirements. Pulling vacuum via the Street Series recirculating design to the inlet is ideal for ethanol fueled competition vehicles, removing ethanol vapors from the crankcase and returning them to the intake system for complete combustion. Please note that the IAG AOS is not compatible with most aftermarket strut tower bars.
Competition Series AOS are “Competition Only” components for installation exclusively on “Competition” vehicles or “Racing” vehicles not subject to pollution control. IAG recommends the Competition Series AOS for Competition vehicles with greater than 600 WHP output. The Competition Series AOS prevents any oil suspended in the PCV gases from re-entering the turbo inlet but requires calibration or tune changes. Select a Street Series AOS if you prefer not to retune your Competition vehicle for this upgrade. For Competition vehicles, follow your engine builder’s maintenance directions, but perform oil changes before every race or practice event .
IAG is not offering any Competition only components for installation on street driven or regulated applications. Installing a Competition Series AOS on a vehicle other than a Competition vehicle used solely for competition motorsport may be violation of the federal prohibitions against “Tampering” provided in CAA§ 203(a)(3)(A), 42 U.S.C. § 7522(a)(3)(A), 40 C.F. R. § 1068.101(b)(I) and “Defeat Devices” in CAA§ 203(a)(3)(B), 42 U.S.C. § 7522(a)(3)(B), 40 C.F.R. § 1068.101(b)(2).
* The IAG AOS is not compatible with most aftermarket strut tower bars.
Model Year & Fitment
- 2022 Subaru WRX
- 2023 Subaru WRX
Installation was super easy as I followed the IAG video on YouTube. Took me about 2 hours to install and I am by no means a mechanic. At first glance the job looked daunting, but it really was super simple to install myself.
required for direct injected
got mine installed and looking good, install was a bit tricky mainly around the OEM PCV valve but only took a couple of hours. highly recommended if you plan on keeping your VB long term
Fits perfect, looks great! The build quality is top notch. Installation was easy and very straightforward. Do yourself a favor and get the multi directional clamp plyers, makes like a lot easier. Also, as a heads up, the 27 mm PCV valve that needs to be removed requires a deep socket. Cheers!
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Shipping Policy: All products sold on the shopping cart are shipped by UPS or USPS. All packages include shipping insurance in case they are lost or damaged. USPS requires signature confirmation on all insured orders over $200.00. USPS shipping times are estimated and not guaranteed. UPS tracking numbers are automatically generated when a package ships and the number is sent to the email address you provided. If a package contents is damaged during shipping please notify the shipping driver and file a claim with the shipper. You have 14 days to inspect your shipment and contents. After that period of time, IAG is no longer responsible for missing items. You have 30 days to report any damaged or incorrect items, after that period of time IAG is no longer responsible for returns or exchanges. You can contact us by Email or call 410-840-3555 for assistance. *International orders are subject to customs charges, duties or fees. Please check with your local customs office before ordering. IAG is not responsible for international customs charges, duties or brokerage fees.
Drop Shipping: Some items require drop shipping to complete an order. These products are shipped from manufacturer or distributor warehouses across the country. In some cases, this may speed up delivery time. In other cases, it could add 1-3 days to the delivery time. If you have a question regarding an order please contact our sales desk at 410-840-3555.
Order Processing: Orders placed after 3PM EST may not be processed the same day. Order processing may take 24-48 hours. USPS orders placed after 10am EST will ship the following business day if the items are in stock
How do I return an item?
You have 14 days to inspect your shipment and contents. After that period, IAG is no longer responsible for missing items. You have 30 days to report any damaged or incorrect items, after that period IAG is no longer responsible for returns or exchanges. All stocking products are subject to a 30 Day return policy. The item(s), when approved for return, are subject to a 20 percent restocking fee. Canceled orders may be subject to a 20 percent cancellation fee. All product returns require a return authorization number before being shipped back to IAG or the manufacturer. An “RMA” number is obtained by calling the IAG Support Desk at 410-840-3555 or emailing firstname.lastname@example.org. Some products may require shipping back to the manufacturer for inspection before a return or exchange may be processed. Some products may not be able to be returned. Products that have been modified or installed are not eligible for return. There are no returns or cancellations for Special Order/Made to Order items and Electrical Components (including the COBB Accessport). Items returned after the 30 Day return period without an RMA will be refused. Canceled service appointments with deposits are non-refundable.
Refunds take 30 days or less. Payments made by Credit Card or PayPal are returned back to the original account used during the transaction. There are no cash returns; we will issue a business check for the return of funds. Refunds are decided by the management and not by sales staff. Canceled service appointments with deposits are non-refundable.
IAG Performance Product Warranty (Excluding - Short Blocks / Long Blocks)
This limited warranty gives you specific legal rights and you may also have other rights, which vary from state to state. We limit the duration and remedies of all implied warranties, including, without limitation, the warranties of merchantability and fitness for a particular purpose to the duration of this express limited warranty. Some states do not allow limitations on how long an implied warranty lasts. The remedies described below are your sole and exclusive remedies and our entire liability for any breach of this limited warranty. Our liability shall under no circumstances exceed the actual amount paid by you for the product, nor shall we under any circumstances be liable for any consequential, incidental, special or punitive damages or losses, whether direct or indirect.
This warranty covers defects in materials and workmanship of your IAG Performance Product for 12 Months or 12,000 Miles from the date of receipt.
IAG will repair any IAG Manufactured Product that proves to be defective in materials or workmanship within the warranty period. If a repair is not possible, we will either replace your Product with a new Product of similar composition and price, or refund the full purchase price of your Product, at our sole discretion. There is no charge for inspection but the buyer is responsible for shipping charges.
IAG Performance Engine Warranty
For more information concerning our engine warranty please visit IAG Performance Engine Warranty Page
Other Manufacturer Products:
Products not manufactured by IAG are subject to the individual manufacturer warranties which may apply. If you have questions concerning the fitment, appearance, or performance of your item, please contact a member of our customer support team for assistance.
Our customer service team is happy to assist you with the products purchased from IAG Performance. Our support associates can help you with installation support, troubleshooting advice, and help to identify possible manufacturer defects.
For products that are found to have defects, our support department can provide the contact information for the manufacturer to arrange a warranty inspection and, if applicable, any necessary repairs or replacement shipments.
You may also contact the manufacturer directly for information regarding product eligibility and specific terms and conditions of warranty coverage.
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