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GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
Community Media
User Media for: GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
User Media for: GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012
User Media for: GrimmSpeed Air Oil Separator Red - Subaru WRX 2008-2014 / Legacy GT 2005-2012

GrimmSpeed Air Oil Separator Red

Subaru WRX 2008-2014 / Legacy GT 2005-2012

$299.00

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Features & Product Details

RallySport Direct proudly carries a great selection of quality aftermarket performance products brought to you by GrimmSpeed. 

 

This is the GrimmSpeed Air Oil Separator. If you're familiar with modifying your vehicle, then you will know the importance of an air/oil separator, especially in a boxer-designed engine. The GrimmSpeed example comes with a unique design as it utilizes the factory oil filler cap location to maintain your PCV system while separating the harmful oil and vapors from the crankcase, as well as the head ventilation system. This will prevent oil from coating the intake manifold which will make can make its way onto the valves which will affect the octane rating which leads to detonation issues and performance issues. 

 

 

DETAILS:

  • Anodized red finish option with white GrimmSpeed logo
  • The unique design utilizes the factory oil filler cap location to maintain your PCV system
  • Prevents harmful oil and oil vapors from entering the crankcase and head ventilation system
  • Prevents the reduction of fuel octane
  • Prevents the higher chances of engine knock and detonation
  • Prevents worse emissions 
  • Prevents higher oil consumption 
  • Very compact design
  • Coalesces oil without using a mesh media which can cause contaminants to collect and cause a sludge buildup
  • The design eliminates the need to check/empty your catch can while refilling your oil 
  • Includes all of the required fittings
  • Includes hose that is cut to specific lengths and zip ties
  • Specifications

    Brand: GrimmSpeed
    Color: Red
    Installation Hardware Included: Yes
    Material: Aluminum
    Mfgr. Warranty: Lifetime
    Condition: New Product
    Return Policy:
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    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    6 Reviews
    3.8 out of 5 Stars
    5 Stars
    (2)
    4 Stars
    (3)
    3 Stars
    (0)
    2 Stars
    (0)
    1 Stars
    (1)
    Customer Photos and Videos
    GrimmSpeed Air Oil Separator Red ( Part Number: 078016R)
    GrimmSpeed Air Oil Separator Red ( Part Number: 078016R)
    GrimmSpeed Air Oil Separator Red ( Part Number: 078016R)
    GRIMMSPEED AOS 2 years ago
    4out of 5stars
    Tony_wrx16
    product is sturdy and doesn't feel cheap. Love the look it gives when you pop your hood. Installation was kinda confusing and took me about 2 hrs to do but overall does it's job!
      
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    Grimmspeed Air Oil seperator  3 years ago
    4out of 5stars
    Boosted Idris
    Good part installing it pretty difficult, and the instructions leave a bunch of important stuff out. I installed in about 3 hours just because each connector and hose was really hard to get on.
      
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    DON'T BUY IN AREAS OF SNOW 6 years ago
    1out of 5stars
    mike12smith
    I purchased my AOS about a year ago and lived in NC where the weather never gets much colder than 32. Now i live in NY and I have nothing but problems with this AOS. It creates a milky residue that freezes in the lines and also PCV valve. I've been having issues with my car burning insane amounts of oil and blowing smoke out the back like a waazoo and this AOS is the problem. I had no issues in the warm temps but I highly do not advise on buying this if you'll be driving in cold temps. Product is worthless and only harmful to my car in the winter. Recommended buying IAG AOS if you live in colder climates.
      
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    Clean and Easy 6 years ago
    5out of 5stars
    Confoosed_drummer18244831
    Fairly straight forward and easy. All the hoses and fittings are of good quality and the AOS is very well made. Had a bit of an issue with the passenger side head tune but got it all to fit nicely. All in all pretty impressed and looking forward to no longer have oil going through my Intake.
      
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    1 of 1 people found the following review helpful
    14 WRX Hatch 7 years ago
    4out of 5stars
    truckstick101
    Came with everything I needed. the instructions from grimspeed's website were somewhat hard to follow but accurate. Install took about 1.5 hours and I didn't use the zipties provided. (bought worm clamps 5/16" - 7/8" & 1/4-Inch-5/8-Inch Pack of 20) ALSO lube the ends of the connectors before trying to insert them into the tubes.... cut my hand trying to force it in without lube ... because I'm a genius.
      
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    QUESTIONS & ANSWERS

    • Q: efficiency  12WRX6 years ago

      I'm curious as to how efficient this is. I couldn't find any design information for it and although i love the location of it i feel like it wouldnt be as efficient as a rectangular or cylinder model. Any info you can give me?
      • 0 of 0 people found the following answer helpful

        A:  It is quite efficient! It routes oil back into the oil feed tube just as any other AOS would.

        Chris W. @ RallySport Direct 6 years ago  
          
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    • Q: 2011-2014 WRX  parapd9 years ago

      With a Perrin or another brand Turbo Intake tube installed, what would you do different with the PCV plug, and tube that runs from under the intake manifold? Any direction would help, considering buying this, however whats the different set up running the vacuum lines with the Turbo tube installed? Thanks
      • 0 of 0 people found the following answer helpful

        A:  Installation will remain the same while using an aftermarket inlet. You will just have one less connection to remove and cap. Mike

        GrimmSpeed
          
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    • Q: 2011 WRX Update  mattonio10 years ago

      Having read the other reviews. Is this set up for the 2011 wrx with the 1/2 to 1/2 connector as others have said to do? Anything I would need to watch out for that's different from the video thats for 2008 models to my 2011 model?
      • 0 of 0 people found the following answer helpful

        A:  There are a few differences, but Grimmspeed has the detailed steps in their writeup for installing the air/oil separator in the link below. https://www.grimmspeed.com/install_guides/subaru_aos_08wrxLGT.pdf

        Nick S. @ RallySport Direct 10 years ago  
          
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      • 0 of 0 people found the following answer helpful

        A:  Hello, Yes this is the correct kit for your car. The installation will remain the same but there might be some minor differences in the appearance of valves at fittings. Installation should not be changed though. Mike

        GrimmSpeed
          
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    • Q: Top mount intercooler  mattonio10 years ago

      Will this fit if I get a process west top mount intercooler down the road? I have a 2011 wrx.
      • 1 of 1 people found the following answer helpful

        A:  Yes it will with no issues.

        Kirill C. @ RallySport Direct 10 years ago  
          
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      • 1 of 1 people found the following answer helpful

        A:  Yes this will fit just fine! There should be no fitment issues with a top mount IC. Mike

        GrimmSpeed
          
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    • Q: fmic compatable?  philiec11 years ago

      will this work with a fmic or will it need longer hoses
      • 0 of 0 people found the following answer helpful

        A:  This should work with a FMIC set up as long as your piping has the appropriate ports for routing the head breathers. You will also want to make sure your piping isn't touching your oil cap. Mike

        GrimmSpeed
          
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