Precision Works AOS Air Oil Separator Subaru WRX 2002-2014 / STI 2004-2021

Precision Works AOS Air Oil Separator - Subaru WRX 2002-2014 / STI 2004-2021

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
  

Designed to work with the following Subarus:

• Subaru WRX 2002-2007
• Subaru STI 2004-2021
• Subaru WRX 2008-2014
• Subaru Legacy GT 2005-2009

Review pages below for additional information:

• Shipping Policy
• Important Shipping Information
• Free Shipping On US Orders Over $175!*
• Terms of Use