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  • IAG Competition Series Air/Oil Separator | Subaru Impreza WRX / STI (IAG-ENG-72)
  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Performance Competition Series (AOS) Air/Oil Separator | Subaru Impreza WRX /STI (IAG-ENG-7200) - Modern Automotive Performance
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  • IAG Competition Series Air/Oil Separator | Subaru Impreza WRX / STI (IAG-ENG-72)
  • IAG Competition Series Air/Oil Separator | Subaru Impreza WRX / STI (IAG-ENG-72)
  • IAG Competition Series Air/Oil Separator | Subaru Impreza WRX / STI (IAG-ENG-72)
  • IAG Competition Series Air/Oil Separator | Subaru Impreza WRX / STI (IAG-ENG-72)

    MAP price match guarantee Unbeatable Price Guarantee

    IAG Performance

    IAG Competition Series Air/Oil Separator | Subaru Impreza WRX / STI

    PART#
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    Contact us to ensure you're getting the right part for your car at the absolute best pricing on earth!

    Email - sales@maperformance.com
    Phone 1(888)627-3736



    $ 379.99   $ 398.99
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    IAG PERFORMANCE COMPETITION SERIES AIR / OIL SEPARATOR (AOS)

    The IAG Performance Competition Series billet aluminum Air / Oil separator (AOS) vents crankcase vapors to the atmosphere. The design is based on years of service on racing and high horsepower Subaru's. The AOS's approximate 1-liter capacity, fully heated housing, superior breathing, and unique patent pending baffle design set it apart from the rest.

    As the air makes its way through the multi-stage baffle system, gravity pulls oil from the air. By increasing the diameter of the breather opening on the top of the AOS, we have drastically decreased the exit velocity of the crankcase vent (CCV) stream. The slower velocity leads to greater oil separation from the pressure stream. A total of 9 mounting holes enables the breathing port a full 180° of rotation. On the bottom, a thick Viton o-ring seals the can. Every o-ring in our AOS is formed from Viton which offers superior temperature and chemical resistance.

    Features

    • Large Billet Aluminum Design
    • Approximate 1 Liter Holding Capacity
    • Integrated 3 Port Billet Hose Barbs
    • Aluminum Body Powder Coated Black, Red
    • All fittings supplied with the AOS are anodized aluminum and feature Viton sealed ORB fittings

    Benefits

    • Unique Baffling Controls Crankcase Pressure
    • Reduces Moisture & Oil Mixing
    • 180° Breather Port Rotation For Install Ease​
    • Returns Oil To The Engine
    • No Maintenance or Manual Draining Required

    Please Note:

    • The IAG AOS is not compatible with most aftermarket strut tower bars​

    Applications

    • 2006-2007 Subaru WRX / 2004-2007 STI (IAG-ENG-7250)
    • 2008-2014 Subaru WRX / 2008-2020 STI (IAG-ENG-7251)
    • 2015-2020 Subaru WRX​ (IAG-ENG-7252)

      What's in the Box?

      • Hardware, Lines & Fittings Included​
      • Multi-point Adjustable Mounting Bracket​
      • Ready To Install

      References

      Warranty

        IAG PERFORMANCE COMPETITION SERIES AIR / OIL SEPARATOR (AOS)

        The IAG Performance Competition Series billet aluminum Air / Oil separator (AOS) vents crankcase vapors to the atmosphere. The design is based on years of service on racing and high horsepower Subaru's. The AOS's approximate 1-liter capacity, fully heated housing, superior breathing, and unique patent pending baffle design set it apart from the rest.

        As the air makes its way through the multi-stage baffle system, gravity pulls oil from the air. By increasing the diameter of the breather opening on the top of the AOS, we have drastically decreased the exit velocity of the crankcase vent (CCV) stream. The slower velocity leads to greater oil separation from the pressure stream. A total of 9 mounting holes enables the breathing port a full 180° of rotation. On the bottom, a thick Viton o-ring seals the can. Every o-ring in our AOS is formed from Viton which offers superior temperature and chemical resistance.

        Features

        • Large Billet Aluminum Design
        • Approximate 1 Liter Holding Capacity
        • Integrated 3 Port Billet Hose Barbs
        • Aluminum Body Powder Coated Black, Red
        • All fittings supplied with the AOS are anodized aluminum and feature Viton sealed ORB fittings

        Benefits

        • Unique Baffling Controls Crankcase Pressure
        • Reduces Moisture & Oil Mixing
        • 180° Breather Port Rotation For Install Ease​
        • Returns Oil To The Engine
        • No Maintenance or Manual Draining Required

        Please Note:

        • The IAG AOS is not compatible with most aftermarket strut tower bars​

        Applications

        • 2006-2007 Subaru WRX / 2004-2007 STI (IAG-ENG-7250)
        • 2008-2014 Subaru WRX / 2008-2020 STI (IAG-ENG-7251)
        • 2015-2020 Subaru WRX​ (IAG-ENG-7252)

          What's in the Box?

          • Hardware, Lines & Fittings Included​
          • Multi-point Adjustable Mounting Bracket​
          • Ready To Install

          References

          Warranty

            Customer Reviews

            Based on 11 reviews
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            J
            J.
            CHALLENGING TO INSTALL BUT WORTH IT!!
            A
            A.O.
            IAG AOS WRX//STi
            R
            R.B.
            Installed on 17 STI
            L
            L.G.
            Application on 09 wrx
            J
            J.M.

            MAP Limited Lifetime Warranty

            1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

            2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

            3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

            4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

            For warranty evaluation please create a support ticket via this form here.

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