Lease for as low as $/week
Precision Works AOS Air Oil Separator - Subaru WRX 02-07 STi 04-19
Air oil separator removes oil from engine ventilation system so the oil does not get into the intake system.
Key Features:
Retains OEM PCV valve
Engine performs cleaner & efficiently
Precision CNC machined
6061 billet aluminum
High quality continental hose
Includes fittings, caps, and zip ties
Designed to work with the following Subaru:
Subaru WRX 02-07
Subaru STi 04-19