The IAG AOS conversion kit for the 2015-19 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.

This kit is designed to convert part# IAG-ENG-7152 to part# IAG-ENG-7252, or part# IAG-ENG-7182 to part# IAG-ENG-7282

Features / Specs
(x1) IAG Competition Series Breather Port
(x1) Breather port o-ring
(x1) 1″ I.D. Breather discharge hose 60 inch length
(x1) 1/4 inch NPT plug
(x1) 1/2 inch rubber cap
(x1) 5/8 inch rubber cap
(x1) 11 inch zip tie
(x5) 6 inch zip tie

NOTE: May require tuning recalibration.