GrimmSpeed Air Oil Separator Blue WRX (2008-2014) LGT (2005-2012) Acura not some rebranded 3rd party

not some rebranded 3rd party product for the BMWs or generic modules that go to different car makes and models

2004-2007 STI

The exhaust will give you up to 12WHP gain (see dyno sheets)

and it matches the Mishimoto Subaru WRX/STI Performance Aluminum Radiator

GrimmSpeed Air Oil Separator Blue WRX (2008-2014) LGT (2005-2012) Acura not some rebranded 3rd partyGrimmSpeed has a unique design for the Subaru WRX, STI and Legacy GT which allows you to keep your PCV valve while separating the oil out of the crankcase and head ventilation air. None of the other competitors on the market are able to vent both. The unit is very compact and efficient, it bolts directly on to the factory oil cap location. You will no longer have to keep tabs on your oil level and or empty the catch can like on most standard cans as