IAG Performance IAG Air / Oil Separator (AOS) Street to Competition Series Conversion Kit

The IAG AOS conversion kit for the 2015-21 Subaru WRX FA20 DIT engine is designed to switch the upper breather portion of the Street Series AOS to the Competition Series AOS. The kit includes the new billet aluminum Competition Series Single breather port, replacement breather o-ring, breather discharge hose, (x1) cap, (x1) plastic plug and zip ties.