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Kooks 2.5 in. Off-Road H-Pipe (05-10 GT w/ Long Tube Headers)

AmericanMuscle no longer carries the Kooks 2.5 in. Off-Road H-Pipe (05-10 GT w/ Long Tube Headers). Please check out 2010-2014 Mustang X-Pipes for Long Tube Headers for an updated selection.
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Features & Details

  • Promotes Greater Gas Flow for More Power
  • Deep, Open Sound
  • Off Road H-Pipe Design
  • Eliminates Catalytic Converters
  • 5” Tubing and 2.5” Outlets
  • Stainless Steel, Natural Finish
  • Intended Only For Off-Road Use
  • Must Be Used Together With Kooks Long Tube Headers
  • Fits 2005–2010 Ford Mustang GT
Big-Breathing Power Boost. The Kooks 2.5” Off Road H-Pipe mid pipe works with the company’s Long Tube Headers to provide vastly improved engine breathing and generate increased power. All the way through the rev range, your Mustang will feel more urgent and willing to destroy the competition.

Opens Up the Deep Mustang V8 Engine Note. The Kooks Off Road H-Pipe provides a distinctive exhaust note. In addition to the bigger, bolder sound from the Long Tube Headers, the H-Pipe adds a deep, open richness that sounds clear and unique.

Eliminates Stock Exhaust Cats. The Kooks solution achieves major improvements in exhaust gas flow by eliminating the stock catalytic converters, which normally restrict good flow of the gases. Together with the Kooks Headers, your Mustang will enjoy new-found ability to breath properly.

Stainless-Steel and Natural Finish. The Kooks Off Road H-Pipe comes with a pair of dedicated down pipes that match up to the Long Pipe Headers. Everything is finished in the natural muted tones of the high-grade stainless steel used to create these masterpieces.

Application. The 2.5” Off-Road H-Pipe works with Kooks Long Tube Headers on the V8 engines of all 2005 to 2010 Mustang GT models.

Fitment: 2005 2006 2007 2008 2009 2010 Details

MPN# 11313400

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

What's in the Box
  • (1) Kooks H-Pipe
  • (2) Down Pipe
  • Installation Hardware
Installation Info
Tech Specs
Will it fit my Mustang?

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Customer Reviews (1) Write a Review

Overall Rating 5

out of 5 stars

Installation Time:Weekend

  • Bang For Your Buck 4 4



  • 5/5

    Installation Time: Weekend

    February 13, 2018

    Kooks H Pipe

    I picked up the Kooks LTH’s and this O/R H pipe to prepare my 08’ Bullitt for a cam upgrade in the future. The combo is paired with Ford Racing intake manifold, FR500s axle backs, and a Steeda Tune. I had no problems with the install, my dad and I finished in a couple of days. I suggest using plenty of PB blaster though. The lift we used was very helpful. Fitment was perfect. The LTH’s and h pipe are probably an 8/10 loud when getting on the throttle, but idle is relatively quiet, and it is possible to not be obnoxious when driving through town. Power gain is noticeable. Awesome product.

    Triple3

    Year: 2008 Submodel: Bullitt

    Helpful (7)

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