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GrimmSpeed Air Oil Separator (02-07 WRX, 04-21 STI)
The GrimmSpeed Air/Oil Separator for Subaru vehicles has a unique design that allows you to maintain your PCV Valve while separating the oil out of the crankcase and head ventilation air! Our AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is oil in your system, the result is 1) reduced fuel octane 2) higher chance of engine knock(detonation) 3) worse emissions 4) higher oil consumption. Our Air/Oil Separator will help all of these problems.
In typical GrimmSpeed fashion, we have made a very compact unit that packs a powerful punch(and looks good while doing it)!
No more having to check/empty your catch can and refilling your oil. The GrimmSpeed AOS coalesces oil without using a mesh media. Mesh medias can cause contaminates to collect and build up resulting in possible sludge. Our AOS is self maintained so you can just sit back, stop worrying, and enjoy driving your car!
Please note this product is designed to combat factory amounts of blow by. If you have a built motor or are experiencing abnormal amounts of oil consumption, this product may not work for you.
As low as
$299.00
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GrimmSpeed AOS (02-07 WRX, 04-21 STI)
GrimmSpeed was founded in 2006 to provide customers with innovative and highly engineered aftermarket products. On a more personal level, we are a group car enthusiasts who are working our passions in the lovely city of Minneapolis, Minnesota. Our bread and butter started out anything Subaru. However, after growing our team and engineering expertise, we started developing products for Mitsubishi, Ford, MazdaSpeed, and Hyundai markets. We are a true garage start-up (single stall townhouse garage in Maplewood, Minnesota) and we've been lucky enough over the years to be able to turn it into exactly the business we had dreamed....actually, much more. We have a wide breadth of product offerings including; intercoolers, exhausts, intakes, gaskets, engine pulleys, phenolic spacers, boost controllers, and many more.
| Year Fitments | Subaru WRX | Subaru STI |
|---|---|---|
| 2002 | ✓ | |
| 2003 | ✓ | |
| 2004 | ✓ | ✓ |
| 2005 | ✓ | ✓ |
| 2006 | ✓ | ✓ |
| 2007 | ✓ | ✓ |
| 2008 | ✓ | |
| 2009 | ✓ | |
| 2010 | ✓ | |
| 2011 | ✓ | |
| 2012 | ✓ | |
| 2013 | ✓ | |
| 2014 | ✓ | |
| 2015 | ✓ | |
| 2016 | ✓ | |
| 2017 | ✓ | |
| 2018 | ✓ | |
| 2019 | ✓ | |
| 2020 | ✓ | |
| 2021 | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings
| SKU | GrimmSpeed AOS (02-07 WRX, 04-21 STI) |
|---|---|
| Brand | GrimmSpeed |
| Product Type | Engine |
| Engine | Oiling System |