Precision Works AOS Air Oil Separator - Subaru WRX 2015-2021

Retains OEM PCV valve
Engine performs cleaner & efficiently
Precision CNC machined
6061 billet aluminum
High quality continental hose
Includes fittings, caps, and zip ties
Wrinkle finish
Compact Cast Aluminum Design
1 Liter Holding Capacity
Integrated ORB Ports
Aluminum Body is powder coated in Red Wrinkle Finish
Three -8 ORB removable billet hose barbs