Radium Air Oil Separator (Subaru)

High-powered modified Subaru engines tend to generate excessive blow-by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Subaru Dual Catch Can Kit, the AOS (Air Oil Separator) kit is responsible for keeping blow-by oil and other pollutants out of the intake pipe, manifold, turbocharger, and intercooler during all engine loads.

The main difference is that an AOS system returns what is collected back into the oil pan so there is no servicing required. The built-in heater keeps water from condensing in the AOS. And because water is more dense than oil, there is an integrated water trap found around the bottom perimeter of the can. This prevents water from descending into the oil pan if ever present. Furthermore, because the water is trapped against the heater, it will eventually boil and evaporate out of the system.

As low as $427.45
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Radium Air Oil Separator (Subaru)

 

All Radium products are carefully planned with thorough R&D and designed in-house using the latest computer simulation and modeling techniques. Extensive testing and evaluation ensures the performance of Radium products exceed consumer expectations. For these reasons, top motorsports competitors and enthusiasts worldwide rely on Radium Engineering products.  

Currently, Radium offers an expanding collection of motorsport parts and accessories for high performance and racing, focusing on their revolutionary fuel surge tank line and PCV oil catch can systems. A growing collection of application specific parts are also being created. Please contact Radium for more information.

 

Vehicle Fitment

  • 20-0258-00

    2015 - 2021 Subaru WRX
    2014 - 2018 Subaru Forester XT

  • 20-0607

    2008 - 2014 Subaru WRX
    2008 - 2021 Subaru STI
  • 20-0207-02

    2002 - 2007 Subaru WRX
    2002 - 2007 Subaru STI
    2004 - 2008 Forester XT

  • 20-0351

    2013 - 2020 Subaru BRZ      

 


WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.

More Information
SKU Radium Air Oil Separator (Subaru)
Brand Radium Engineering
Product Type Engine, Intake and Exhaust
Engine Intakes and Intercoolers
Intake and Exhaust Intakes and Intercoolers