IAG Performance V2 Air/Oil Separator (AOS) Competition Series To Street Series Conversion Kit Subaru 2015-2020 WRX


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

*This kit is used to convert vehicles with 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 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

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