Radium AOS-R Air Oil Separator for 2002-2007 WRX & STi (20-0207-02) Hoosier Not to mention street driving

Not to mention street driving just got a whole lot more fun

• Please see the Sport Springs 4N017 for 2009-2010 or Sport Springs 4N912 for 2015-2021 GTR models

• One -10AN ORB Port

The patented air core meter movement

Designed to be used with Ticon Industries titanium tubing

Radium AOS-R Air Oil Separator for 2002-2007 WRX & STi (20-0207-02) Hoosier Not to mention street drivingAn AOS (Air Oil Separator) Kit is responsible for keeping blow by oil and other pollutants out of the intake pipe, manifold, turbocharger, and intercooler during all engine loads. The AOS "R" system "returns" what is collected back into the oil pan so there is no servicing required. Vehicle Fitment: 2002 2007 Subaru WRX 2004 2007 Subaru STi 2004 2008 Subaru Forester XT 2005 2006 Saab 9 2X Aero (* Fits LHD Left Hand Drive ONLY *) Install Notes: For 02