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IAG Performance Air / Oil Separator (AOS) Street to Competition Series Conversion Kit For 06-14 WRX, 04-16 STI


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The IAG AOS conversion kit is designed to switch the upper breather portion of the Street Series AOS to the Competition Series AOS in the 2006-14 Subaru WRX and 2004-18 STI. The kit includes the new billet aluminum Competition Series Single breather port, replacement breather o-ring, breather discharge hose, NPT plug, (x2) rubber caps and zip ties.

*May require tuning recalibration.

*This kit is designed to convert part# IAG-ENG-7100 to part# IAG-ENG-7200.


(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

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