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IAG Performance Fitting Stainless Steel AN Breather Fitting Set for EJ20/EJ25

Engine Crankcase Breather Hose Connector


IAG Stainless Steel AN Breather Fitting Set for 2004-21 Subaru STI, 05-14 WRX, 04-13 FXT, 05-09 LGT.

  • Replaces the OEM block breather fittings for racing applications with custom AN lines.
Pricing: $129.99

Free ground shipping on all order over $100.00 (some exclusions may apply)


Subaru: Legacy 05 - 09 GT spec.B / GT, Subaru: Forester 04 - 13 XT Touring / XT / XT Limited, Subaru: WRX STI 15 - 21, Subaru: Impreza 04 - 14 WRX STI / WRX

  • Kit Includes: (x1) -12 Stainless Steel AN Block Breather Fitting, (x3) -8 Stainless Steel Block Breather Fittings, (x2) -8 Stainless Steel Valve Cover Breather Fittings, (x1) Loctite 620 High Temp Sleeve Locker, (x2) AN Caps used for press fit installation, This product was originally designed for use with the IAG Race Series AOS so that racecars could use AN fittings at the AOS as well as the breather ports. The product can be used with IAG Competition Series and Street Series AOS with custom -8 ORB fittings.
  • This part is not a direct bolt-on. Installing the AN Breather Fitting Set requires custom AN hoses, a Race AOS and is recommended to have an experienced technician properly press the breather fittings in place. IAG does not currently offer installation instructions for this part.

As part of IAG's ongoing Subaru EJ Series engine performance program, we have developed a stainless steel AN breather fitting set with a focus on performance and serviceability. Our Stainless Steel AN Breather Kit allows you to use lightweight racing hoses with AN fittings which are easier as well as faster to remove and reinstall when you need to service your EJ at the track. AN fittings also provide a more reliable hose connection on the engine during competition. Combining the AN Breather Kit with our Race AOS will give you a complete AN breather hose solution. The breather set includes six stainless steel fittings designed to be press fit into the breather ports located on the block and valve covers. The set also includes two AN caps for installation as well as Loctite 620 high temp sleeve locker.


  • IAG-ENG-7301
  • IAG-ENG-7301
  • 887753780102
  • IAG Performance
  • New


Shipping Information

  • Item Requires Shipping
  • 0.8 lbs.
  • W0.8000” x H2.0000” x L5.0000”
  • Free ground shipping on all order over $100.00 (some exclusions may apply)

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