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

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
  
• Wrinkle red finish

Designed to work with the following Subaru:

• Subaru WRX 2015-2021 

Air Oil Separator (AOS) Features:

• 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

Now available in Red or Black!