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Blow Off Valve Recirc Type for 2002-07 WRX/2004-15 STI


20 Minutes

Availability: Closeout Price, Limited To Supply On Hand.
Pricing: $372.00


Subaru Blow Off Valve


The PERRIN blow off valve cap, piston & flange are all CNC machined from 6061 Billet Aluminum. The body is CNC machined from a single block of aluminum. No additional bolt on pieces means we eliminate potential leaks.

Adjustable Relief Pressure

The PERRIN BOV features an adjustable cap which allows you to tailor when your BOV will release. Set it up loose for a smoother release of boost at light loads and RPM. Or crank down the cap to release boost only at higher boost loads and RPMs. This feature is independent of relief volume.

Adjustable Relief Volume

Our unique design allows you to adjust the volume of air released when blowing off. This adjustment is independent of the resistance to blowing off. Venting too little can damage the turbo, venting too much air can will make the throttle less responsive.


The PERRIN blow off valve requires very little maintenance but when needed, it's very easy and quick to disassemble the blow of valve with no special tools required.

Recirculating or Vent to Atmosphere

This universal fitment has large 1.325" tube connections for easy installation. Simply disconnect the recirculating hose and let your blow off valve vent to atmosphere on cars using speed density type ECU's (Cars with no MAF)

5 Year Warranty

PERRIN Performance warrants to the original purchaser that all PERRIN products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase. *Some exclusions apply
» Read Full Warranty

Off Road Note

NOTE: This item may be for off-road use only in your area. See Terms and Conditions prior to ordering!
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Warranty Details

This product features a 5 year warranty Read Full Warranty

Tech Department




Body Material 6061 Aluminum
Body Finish Anodized
Piston Material 6061 Aluminum
Piston Finish Anodized
Flange 6061 Aluminum
Cap Material 6061 Aluminum
Cap Finish Anodized

Compatibility Detail


2002-2007 WRX Yes
2004-2014 STI Yes
2015 STI Yes

In The Box

In The Box

(1) PERRIN recirculating blow off valve
(1') 1/4" Fuel Hose
(2.2') 1/2" Fuel Hose
All necessary hardware


Shipping Information

  • Item Requires Shipping
  • 2.0 lbs.
  • W3.0000” x H6.0000” x L8.0000”