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IAG Performance Air / Oil Separator (AOS) Street to Competition Series Conversion Kit For 2015-16 WRX


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The IAG AOS conversion kit for the 2015-16 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.

*May require tuning recalibration.

*This kit is designed to convert part# IAG-ENG-7101 to part# IAG-ENG-7201.


(x1) IAG Competition Series Breather Port

(x1) Breather port o-ring

(x1) 1 inch I.D. breather discharge hose (55 inch length)

(x1) 3/8 inch plastic plug

(x1) 5/8 inch rubber cap

(x8) 8 inch zip tie

This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to