Radium AOS-R Air Oil Separator for 2002-2007 WRX & STi (20-0207-02) Hoosier This is no longer a

This is no longer a project you have to wait on until you pull the motor or turbo or manifold to do

The patented air core meter movement

Good for stock frame upgraded turbos or up to 500 WHP upgrades

Clevite 77 aluminum rod bearings for the 4G63 6-Bolt DSM Eclipse

This is the charger you must use with the AntiGravity and LithiumPros Lithium batteries

Radium AOS-R Air Oil Separator for 2002-2007 WRX & STi (20-0207-02) Hoosier This is no longer aAn 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