GrimmSpeed Air Oil Separator Blue WRX (2002-2007) STI (2004-2018) Mazda On AT equipped cars it

On AT equipped cars it may be necessary to relocate a bracket and wiring harness to install this bar correctly

MK7 Track Edition Exhaust

and braking making you feel overall more connected with your vehicle

The PERRIN Performance boost controller cover for the Subaru STI is constructed of 5052 plate aluminum with precision bends and mounting holes to fit perfect under your hood

GrimmSpeed Air Oil Separator Blue WRX (2002-2007) STI (2004-2018) Mazda On AT equipped cars itGrimmSpeed 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