• Add description, images, menus and links to your mega menu

  • A column with no settings can be used as a spacer

  • Link to your collections, sales and even external links

  • Add up to five columns

  • RAD20-0351

    Radium Engineering Air Oil Separator-Return Kit - 12-21 Subaru BRZ / Toyota 86

    WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

    Request Price Match

    FREE SHIPPING

    Usually ships in 3-5 business days

    COMPATIBILITY
    12-16 Scion FR-S (LHD)
    12-21 Toyota GT86 (LHD)
    12-20 Subaru BRZ (LHD)


    High-powered modified Toyota 4U-GSE and Subaru FA 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 Dual Catch Can Kit, the AOS-R (Air Oil Separator-Return) 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-R system returns what is collected back into the oil pan (as shown below) so there is no servicing required. The built-in heater keeps water from condensing in the AOS-R. 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.

    CLICK HERE for a more in-depth look at the Subaru AOS-R 

    The AOS-R is constructed of three CNC machined sections that screw together and are sealed with O-rings.


    DIMENSIONS
    AOS-R Height: 6.3" (without fittings)
    AOS-R Diameter: 3.45" Round 
    AOS-R Capacity: 20.3 oz (600mL)


    PORTS
    Inlet: 7/8"-14 threaded for 10AN ORB fittings
    Outlet: 7/8"-14 threaded for 10AN ORB fittings
    Return: 7/8"-14 threaded for 10AN ORB fittings
    Coolant: 7/16"-20 threaded for 4AN ORB fittings (x2)


    BENEFITS
    -Effectively raises the octane and increases engine performance with cleaner inlet air 
    -Prevents oil buildup in the intake or intercooler system walls, throttle body, intake manifold, etc.

    -Lowers hydrocarbon emissions


    INCLUDED
    -Machined alumium Radium Air Oil Separator
    -Specially designed mounting bracket
    -SAE J30R7 rated PCV/Emissions hose
    -Coolant heater hoses and fittings
    -All necessary aluminum fittings and hose-ends
    -Stainless steel mounting hardware