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Parts Finder Main (New)

GrimmSpeed Air Oil Separator

Brands:
CA$433.55
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.
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 AOS 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 AOS will solve all of these problems.
In GrimmSpeed fashion, we have made a very compact unit that packs a powerful punch(and looks good while doing it)!
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Fitments

Year Make Model Submodel
2012 Subaru Legacy 2.5 GT
2011 Subaru Legacy 2.5 GT
2010 Subaru Legacy 2.5 GT
2009 Subaru Legacy GT spec.B
2008 Subaru Legacy GT spec.B
2007 Subaru Legacy GT spec.B
2006 Subaru Legacy GT spec.B