IAG Performance V4 Air Oil Separator AOS - Black - 2004-2007 Subaru STI / 2006-2007 WRX PDM_windshield-shades Designed for use with Radium

Designed for use with Radium Engineering Fuel Damper (or similar)

Confirmed to fit on GR Supras with a Cusco front brace installed

Deatschwerks

this is not the same system as the VA generation

while giving you all of the performance attributes you need in a track focused wheel for your Subaru WRX / STI

IAG Performance V4 Air Oil Separator AOS - Black - 2004-2007 Subaru STI / 2006-2007 WRX PDM_windshield-shades Designed for use with RadiumIAG V4 Air Oil Separator AOS Black 2004 2007 Subaru STI 2006 2007 WRX Keep Oil Out of Your Intake The IAG V4 Air Oil Separator (AOS) is designed to protect and improve the performance of your 2006 2007 Subaru WRX or 2004 2007 STI by intercepting crankcase blow by oil before it reaches the intake tract. Developed after years of testing on both street and competition applications, the IAG AOS uses a 1 liter cast aluminum swirl pot canister to