2022-2024 SUBARU WRX IAG PERFORMANCE STREET SERIES AIR OIL SEPARATOR AOS NEON YELLOW

$499.99

Fits: 2022, 2023, 2024 WRX

10 in stock

SKU: IAG-ENG-7183NY Category: Tag:

Description

IAG Performance V3 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.

Oil in the Intake

MAINTENANCE FREE

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.

IAG Performance Air Oil Separator Exploded-view 3D
IAG Performance 2022 Subaru WRX AOS PCV Connections

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.

IAG Performance 2022+ WRX AOS Plug & Play Installation

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.


What’s Inside:

  • 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

Additional Information:

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.