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GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
Community Media
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red (Part Number: )
GrimmSpeed Air Oil Separator Red
Subaru WRX 2002-2007 / STI 2004+
Read 25 Reviews | 14 Q&As
Part # 078006R
$299.00

In stock! Ships same day

Features & Product Details

The Grimmspeed Air-Oil Separator (AOS) is one of RallySport Direct's highly sought after items. Grimspeed uses a unique patent pending design which allows you to maintain your PCV valve while separating oil from the air in both the heads and crankcase. These boxer engines have inherent issues with harmful oil and vapors getting into the intake system of your vehicle which can cause issues like having an effect on the octane rating with your gas, and after long periods of use and mileage can cause buildup on your valves.

This particular air-oil separator takes the place of an oil catch can, or a tank which is convenient to eliminate the need to empty the catch can. This is a subtle installation that replaces your factory oil filler cap.

New lines, fittings, and zip ties will be included to make this catch can system ready for the installation. 

Note that this particular unit will come in the anodized red finish for protection against corrosion, and to add a nice touch to the theme of your engine bay. 

Specifications

Brand: GrimmSpeed
Color: Red
Installation Hardware Included: Yes
Material: Aluminum
Mfgr. Warranty: Lifetime
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee

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REVIEWS & CUSTOMER MEDIA

25 Reviews
4.5 out of 5 Stars
5 Stars
(20)
4 Stars
(1)
3 Stars
(2)
2 Stars
(1)
1 Stars
(1)
Customer Photos and Videos
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
GrimmSpeed Air Oil Separator Red ( Part Number: 078006R)
Bling with purpose 4 months ago
07WRX
The AOS was easy to install, integrates well, and is well engineered.
  
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Excellent product 5 months ago
cgiha
Great quality, easy installation and helps the engine a lot
  
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Easy install clean fitment 5 months ago
Jack
Very simple install with enough hose to run all new lines. Remember a 19mm socket for oil changes and you'll be fine.
  
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grimmspeed air oil separator red 2 years ago
FRANCES
fácil de instalar y buena presentacion
  
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Gorgeous!!  2 years ago
NotoriousBIB
Frist off, GS provides everything you need to install the AOS, from the zip ties to hoses. Installation was a breeze!I love that its maintenance free. My TMIC had previously been removed before i got the AOS and i did notice oil buildup inside the piping. After running the AOS for sometime, i upgraded my TMIC and during that installation process, I was very impressed at the difference in oil build up. Awesome part from an awesome company!!
  
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QUESTIONS & ANSWERS

  • Q: Power  JimmyAdeux1 year ago

    Is there a maximum power this AOS can hold? Example; 20psi, 340whp
    • 0 of 0 people found the following answer helpful

      A:  Performance isn't dictated by a certain PSI, rather how much blow-by the motor has. If the engine is healthy and not a lot of blow-by is making it past the piston rings, then the AOS will function properly. If on the other hand a lot of blow-by is making it through, then the unit won't be able to separate the air/oil mixture quickly enough and you'll find oil getting in your car's intake tract.

      Jared A. @ RallySport Direct 1 year ago  
        
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  • Q: PCV Valve Removal?  VItaminRich1 year ago

    Do you keep or remove the PCV Valve with this Separator installed?
  • Q: Instructions for fmic  xsaint77410603 years ago

    Are there directions for a fmic
    • 0 of 0 people found the following answer helpful

      A:  If you have a FMIC, the instructions are identical except the bottom right port on the AOS will not go to the oem head breather hardline, it will go to your existing “T” for the head breathers.

      Brady R. @ RallySport Direct 3 years ago  
        
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  • Q: what is the difference between this and Perrin/Crawford based AOS systems?  Evren3 years ago

    if you could shed some light that would be great on my order decision. Thanks
    • 0 of 0 people found the following answer helpful

      A:  This system routes blow by back to the oil feed tube, it is also unbaffled and not recommended due to the location for heavy track use. The Crawford and Perrin AOS systems are coolant cooled and work very well for track applications. This is a simple AOS that doesn't break the bank and is much easier to install than the other two.

        
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