On orders over $100
100% Money Back on Select Parts
Product images
Product Media
COBB Tuning XLE Bypass Valve (Part Number: )
COBB Tuning XLE Bypass Valve (Part Number: )
COBB Tuning XLE Bypass Valve (Part Number: )
COBB Tuning XLE Bypass Valve (Part Number: )
COBB Tuning XLE Bypass Valve (Part Number: )
COBB Tuning XLE Bypass Valve (Part Number: )
COBB Tuning XLE Bypass Valve
Subaru WRX 2002-2007 / STI 2004+

Features & Product Details

The COBB Tuning XLE Bypass Valve has been designed as a compact and lightweight replacement of your OEM components. When adding modifications that increase boost pressure, as well as horsepower, you can risk having the factory bypass valve leaking boost which can throw off your tune, cause your turbocharger to work harder, among other things.

The COBB XLE will hold higher boost pressures, but also incorporates very fast venting of boost under operation. This is achieved in the light weight components implemented within the design. Less inertia will allow for a faster response. 

Additionally, COBB’s exhaust port and piston face will allow the air to evacuate more quickly, allowing the turbocharger to respond sooner between shifts. 
The XLE Bypass Valve is also completely rebuildable in case there should be an o-ring failure. 

Included with the COBB XLE Bypass Valve are a supplied vacuum line, a vacuum port, a pair of port fittings, and an allen tool to make for a ready installation. 


Brand: COBB Tuning
Adjustable: Yes
Color: Black
Design: Piston
Includes Gasket(s): No
OEM Replacement: Yes
QTY: 1
Valve Type: Recirculating
Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee
WARNING: Cancer and Reproductive Harm -



Be the first to write a review


  • Q: Gauge hook up  Subie Al6 months ago

    Hello i am new to WRX and will like to know if i can hook up my boost gauge in my dash to read my boost PSI? I have a blow off valve now and there is a line that runs to it to read my boost. Will it hook up the same way? Thanks!
    • 0 of 0 people found the following answer helpful

      A:  If you require assistance with installs it would be best to chat in with us and we can help!

      Devan M. @ RallySport Direct 6 months ago  
      Was this answer helpful?
  • Q: Tune  rearc7094197241 year ago

    I have the Cobb stage 1 map flashed for my 08 sti, will I need to re tune for this?
  • Q: Is this one different?  sk8erfourlife182948771 year ago

    I remember this one being a hybrid or did cobb stop making them a hybrid?
    • 0 of 0 people found the following answer helpful

      A:  This valve is a fully recirculating valve. At this time, Cobb does not offer a hybrid valve.

      Marcus E. @ RallySport Direct 1 year ago  
      Was this answer helpful?
  • Q: Difference  capilarybinkie3 years ago

    I noticed, and I'm assuming the older ones just say tuned by Cobb on them, and this says XLE. Is there a difference with this newer version? Also just to clarify, this set on fully recirculating has no downside to a cars performance or anything? Is there a specific way the spring should be set?
    • 0 of 0 people found the following answer helpful

      A:  Recirculating by pass valves will not have any downside to your car performance and you might need to adjust the spring using the adjustment on the top of the bypass valve.

      Chris W. @ RallySport Direct 3 years ago  
      Was this answer helpful?

This Part Fits