GrimmSpeed Air Oil Separator - Subaru WRX 2002-2007 / STi 2004-2021 Delrin (2) 6061-T6 Aluminum toe arm

(2) 6061-T6 Aluminum toe arm body

Response time of 1ms

(2) M14 bolts

The end links are CNC machined from 6061-T6 aluminum and anodized black to resist against corrosion

GrimmSpeed Air Oil Separator - Subaru WRX 2002-2007 / STi 2004-2021 Delrin (2) 6061-T6 Aluminum toe armAn 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 Subaru Air Oil Separator 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! Their AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is