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GrimmSpeed Air/Oil Seperator SUBARU

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Fitments

SUBARU
More Information Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
Click For More Info 2004 - 2008 FORESTER SPORTS 2.5 XT
XT
XT LIMITED
XT PREMIUM
ALL 2.5 T EJ255 ALL
Click For More Info 2002 - 2007 IMPREZA WRX
WRX LIMITED
WRX TR
H4 2.0
2.5
T EJ205
EJ255
ALL
Click For More Info 2004 - 2014 IMPREZA WRX STI
WRX STI LIMITED
WRX STI SPECIAL EDITION
H4 2.5 T EJ257 ALL
Click For More Info 2008 - 2014 IMPREZA 2.5 GT
WRX
WRX LIMITED
WRX PREMIUM
H4 2.5 T EJ255 ALL
Click For More Info 2005 - 2009 LEGACY GT
GT LIMITED
GT SPEC.B
H4 2.5 T ALL ALL
Click For More Info 2015 - 2016 WRX STI ALL ALL ALL ALL ALL ALL

Product Description

An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake system.

The GrimmSpeed Subaru Air/Oil Separator has a unique patent pending 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 Subaru 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!