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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 blue finish for protection against corrosion, and to add a nice touch to the theme of your engine bay.
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.
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REVIEWS & CUSTOMER MEDIA
Bought this to help avoid the dreaded ring land failure issue even though I was not experiencing any oil "losses" between changes. Written installation instructions were cryptic and limited. Pictures did not help much. GrimmSpeed YouTube video was marginally better. A pneumatic 'hookup' diagram would have helped tremendously. Will have to report back as to how well it performs.
If you're boosting over stock this is a great addition. When I swapped the stock TMIC for an upgrade I noticed oil residue by the BOV. This product helps keep oil out of the intake. If you care about the longevity of your motor spend the money. The fit and finish is fantastic.
Installed unit and have a 2.7 stroker engine. When I first stated using it I loved it. Figured all was fine. Then I checked my oil. I was down a liter. So I pulled my avo intercooler. Found oil everywhere. Figured new turbo had bad seals. The consulted a few people. Check my grim speed aos. And the hose leading to my intake was full of oil and dripping. Route cause is vacuum. It sucks oil out of the engine and into turbo. If you want to use it install clear lines to see if it is doing the same for you. I am running 19 psi. Or vent unit to atmosphere.
QUESTIONS & ANSWERS
Q: tuning SubaruBlue117 years agoany tuning required for this product?
0 of 0 people found the following answer helpful
A: No, this kit will come with everything you need to install it in the specified location, so no additional parts should be required for the install. Thanks, RickRick C. @ RallySport Direct 7 years ago
- 0 of 0 people found the following answer helpful