GrimmSpeed Air Oil Separator Red - Subaru Turbo 02-07 WRX/ 04+STI/04-08 FXT (078006R) 17385 Signature sound all of the

Signature sound all of the time: SwitchPath™unleashes a signature soundtrack out of the Z06

These switch panels include a variety of interchangeable laser engraved switch nameplates allowing you to change any switch to any location

drivers can easily switch between the quiet mode and a sportier sound

heat shields are laser cut

GrimmSpeed Air Oil Separator Red - Subaru Turbo 02-07 WRX/ 04+STI/04-08 FXT (078006R) 17385 Signature sound all of theAn 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 Air Oil Separator for Subaru vehicles has a unique 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