Replacement Parts

The IAG Performance Air Oil Separator Strut Tower mounting bracket is designed to replace the standard mounting bracket included with IAG's AOS kits produced before mid April 2016. The bracket is made from 3/16" aluminum that is powder coated black and...

The IAG Performance AOS (Air Oil Separator) Strut Tower mounting bracket was originally designed to replace the standard mounting bracket included with early version 1 IAG's AOS kits. The redesigned bracket enabled installers to manipulate the AOS on the...

The IAG Performance AOS (Air Oil Separator) pitch mount bracket is designed to replace the standard mounting bracket included with IAG's AOS kits. The 2 piece billet aluminum bracket is CNC machined in our Westminster facility and features all the...

The IAG Performance AOS (Air Oil Separator) pitch mount bracket is designed to replace the standard mounting bracket included with IAG's AOS kits. The 3 piece billet aluminum bracket is CNC machined in our Westminster facility and features all the...

The IAG wiring harness relocation bracket is included in an IAG Street Series and Competition Series AOS for the 2008-14 Subaru WRX, 2008-21 STI and 2005-09 Legacy GT (PN# IAG-ENG-7151 and PN# IAG-ENG-7251).

IAG Street Series and Competition Series air oil separator replacement ECU relocation bracket for the 2015-17 Subaru WRX (PN# IAG-ENG-7152, IAG-ENG-7252 ).

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 2004-21 STI. The kit includes the new billet aluminum Competition Series Single breather...

The IAG AOS conversion kit for the 2015-21 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...

The IAG AOS conversion kit is designed to switch the upper breather portion of the V3 Competition Series AOS to the V3 Street Series AOS on the 2015-21 Subaru WRX. The kit includes the new billet aluminum V3 Street Series double breather, Street Series...

The IAG AOS conversion kit is designed to switch the upper breather portion of the V3 Competition Series AOS to the V3 Street Series AOS on the 2006-14 Subaru WRX and 2004-21 STI. The kit includes the new billet aluminum Street Series double breather,...

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...

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 2006-14 Subaru WRX and 2004-21 STI. The kit includes the V2 billet aluminum Street Series double breather,...

This is a direct replacement IAG V3 Street Series AOS PCV Line Kit that is included with all V3 Street Series air oil separators For FA20 DIT Engines.  The kit includes the two-part line, valve, and hose clamps. This item is not intended to work...

This is a direct replacement IAG Street Series AOS PCV Line Kit that is included with all V2 Street Series air oil separators after October 1, 2016. The kit includes the two-part line, valve, and fitting. This item is not intended to work with the V3 AOS...

The IAG Performance replacement .75" x 2" block drain hose is designed to fit all EJ version 2 and version 3 IAG Air Oil Separators.  Direct replacement hose for IAG V2 & V3 AOS part...

The IAG Performance replacement .5" x 26" drain hose is designed to fit all EJ version 2 and version 3 IAG Air Oil Seperators.  Direct replacement hose for IAG V2 & V3 AOS part...

This is a direct replacement IAG V3 Street Series AOS PCV Line Kit that is included with all V3 Street Series air oil separators For EJ25 Engines.  The kit includes the two-part line, valve, and hose clamps. This item is not intended to work with...

Replacement coolant line hose with crimped aluminum fitting in a 24" length designed specifically to work with the IAG V2 air oil separators. Please know your required hose length before ordering a few AOS applications require a longer length. This item...

Replacement coolant line hose with crimped aluminum fitting in a 43" length designed specifically to work with the IAG V2 air oil separators. Please know your required hose length before ordering. This item will not work with the V3 AOS.

Replacement coolant line hose with crimped aluminum o-ring fitting on one end and crimped plastic barb on the other in a 15.5" length designed specifically to work with the IAG V2 air oil separators for the 2015-20 Subaru WRX. This item does not work...

This is a direct replacement IAG V3 AOS 15.5" Coolant Line that is included with 2015-21 Subaru WRX Street Series & Competition Series air oil separators with Part Numbers IAG-ENG-7182, IAG-ENG-7282. The 1/2" heater hose is 15.5 inches in length and...

This is a direct replacement IAG V3 AOS 20" Coolant Line that is included with Street Series & Competition Series air oil separators with Part Numbers IAG-ENG-7180, IAG-ENG-7181, IAG-ENG-7280, IAG-ENG-7281. The 1/2" heater hose is 20 inches in length...

This is a direct replacement IAG V3 AOS 43" Coolant Line that is included with 2015-21 Subaru WRX Street Series & Competition Series air oil separators with Part Numbers IAG-ENG-7182, IAG-ENG-7282. The 1/2" heater hose is 43 inches in length and...

The IAG V3 Street Series Air Oil Separator Replacement Hose Line & Hardware kit includes all the hoses, lines and hardware that was included in an IAG V3 Street Series AOS for the 2006-07 Subaru WRX and 2004-07 STI (PN# IAG-ENG-7180). *Please note...

The IAG Street Series V3 Air Oil Separator Replacement Hose Line & Hardware Install kit includes all the hoses, lines, and hardware that was included in an IAG Street Series V3 AOS for the 2008-14 Subaru WRX, 2008-21 STI and 2005-09 Legacy GT (PN#...

The IAG V3 Street Series Air Oil Separator Replacement Hose Line & Hardware Install kit includes all the hoses, lines and hardware that was included in an IAG V3 Street Series AOS for the 2015-21 Subaru WRX (PN# IAG-ENG-7182). *Please note this does...

The IAG V2 Competition Series Air Oil Separator Replacement Hose Line & Hardware Install kit includes all the hoses, lines and hardware that wass included in an IAG V2 Competition Series AOS for the 2006-07 Subaru WRX and 2004-07 STI (PN#...

The IAG V2 Competition Series Air Oil Separator Replacement Hose Line & Hardware Install kit includes all the hoses, lines, and hardware that was included in an IAG V2 Competition Series AOS for the 2008-14 Subaru WRX, 2008-18 STI and 2005-09 Legacy...

The IAG V2 Competition Series Air Oil Separator Replacement Hose Line & Hardware Install kit includes all the hoses, lines and hardware that was included in an IAG V2 Competition Series AOS for the 2015-20 Subaru WRX (PN# IAG-ENG-7252). *Please note...

The IAG V2 Street Series Air Oil Separator Replacement Hose Line & Hardware kit includes all the hoses, lines and hardware that was included in an IAG V2 Street Series AOS for the 2006-07 Subaru WRX and 2004-07 STI (PN# IAG-ENG-7150). *Please note...