The IAG AOS conversion kit is designed to switch the upper breather portion of the V2 Competition Series AOS to the V2 Street Series AOS on the 2015-20 Subaru WRX. The kit includes the new billet aluminum V2 Street Series double breather, Street Series vent hose assembly, 3/8" hose with Breather fitting and PCV valve, 90-degree fitting, and associated hardware.

*This kit is used to convert vehicles with obsolete part# IAG-ENG-7252 to part# IAG-ENG-7152
**It also can be used to convert vehicles with obsolete part# IAG-ENG-7201 to part# IAG-ENG-7101.

(x1) IAG V2 Street Series Air Oil Separator Upper Breather Port
(x1) Upper Breather Port O-Ring
(x1) M4 x 8mm socket head screw
(x1) Street Series Vent Hose Assembly (5/8 inch hose to Y fitting to (x2) 1/2 inch hoses)
(x1) 3/8 inch hose with integrated PCV valve and breather fitting (21 inch)
(x8) 8 inch zip ties
(x1) 3/8 inch 90 degree barb fitting