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Grooves in the bushing ensure grease stays where it needs to be and prevents creaking after extended use
the OEM tow hook provided by the manufacturer
Street use and light track use
Digital laser measurements of interior surfaces offer a consistently perfect fit
Grimmspeed Air Oil Separator (Blue) - Subaru STI VA 0w40 Grooves in the bushing ensureFits 2015+ Subaru STI 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 is unique as it 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
US$ 34.99
US$ 59.99
US$ 59.99
