Use Coupon Code BOOST5 at Checkout!
Use the chat function below to ask us anything you need!
$104.99
Starting at $10/mo with Affirm. See if you qualify
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 2015-21 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
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 2015-21 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
Thank you for posting a question!
Your question will appear on the site once we've answered it.
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
© 2025 New Provisions Racing. All rights reserved
Use Coupon Code BOOST5 at Checkout!
Use the chat function below to ask us anything you need!