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Kooks 3 in. Off-Road H-Pipe (12-13 BOSS 302 w/ Long Tube Headers)

AmericanMuscle no longer carries the Kooks 3 in. Off-Road H-Pipe (12-13 BOSS 302 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

  • Maximizes Airflow for a Boost in Horsepower
  • Deep, Aggressive Super Car Sound
  • Off-Road H-Pipe Design
  • Eliminates Catalytic Converters for Completely Uninterrupted Airflow
  • 3" Mandrel-Bent Tubing
  • Premium 304 Stainless Steel Construction
  • Polished Finish
  • Intended for Racing and Off-Road Use Only
  • Designed for Use with Kooks Long Tube Headers
  • Fits 2012-2013 Ford BOSS 302 Mustangs with Long Tube Headers
Take Command of the Track. The Kooks 3” Off-Road H Pipe will boost your horsepower and torque to a level you’ve never seen before, making you the ruler of the racetrack. The flowing design of the pipe maximizes airflow through the system, optimizing performance and bringing a new fierceness to your Mustang BOSS.

Ultimate Compatibility. With the option to pair with either Kooks side pipes or your factory side pipes, the Off-Road H-Pipe offers the best in flexibility. The outlet measures 2-3/4 inches, which makes it a perfect match for factory or factory-style exhausts.

High-Performance Materials. Constructed with the highest quality stainless steel on the market, the Off-Road H-Pipe is built to last. The aircraft-quality, mandrel-bent T304 stainless steel will hold up in tough conditions.

Straightforward Installation. Spend less time in the garage and more time on the track with the simple, user-friendly installation. You can skip the hassle of cutting or welding, because the Kooks H-Pipe is an entirely bolt-in installation.

Application. The Kooks 3” Off-Road H-Pipe is designed for use with 2012 and 2013 Ford Mustang BOSS 302 with side pipes. Kooks Long Tube Headers are required for use with this part.

Important Note. The Off-Road H-Pipe is intended for racing and off-road use only. This product is not legal for sale, use, or installation on licensed vehicles in California. This product does not meet CARB compliance.

Fitment: 2012 2013 Details

MPN# 11413410

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Exhaust Pipe Assembly
Installation Info
Tech Specs
Will it fit my Mustang?

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Questions & Answers (2)

2 Top Rated Questions

Can this H-Pipe be used with different long tube header brands, such as Stainless Works?

  • Unfortunately, this h-pipe is designed to be worked with Kooks headers and will not bolt up to the Stainless Works headers unless modified to work.

Helpful (0)

Could this fit on a 2011 GT? I thought the exhausts on the 2011 Gt and the 2012 boss 302 were similar?

  • No, unfortunately this Kooks 3 in. Off-Road H-Pipe is specifically designed to fit 12-13 Boss 302 Mustangs with long tube headers and will not fit any other year or model Mustang.

Helpful (0)
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Customer Reviews (1) Write a Review

Overall Rating 5

out of 5 stars

Installation Time:Less than 1 Hour

  • Bang For Your Buck 5 5

  • 5/5

    Installation Time: Less than 1 Hour

    May 13, 2018

    Great Mid Pipe

    I have a 2011 GT and put the OEM Boss 302 Mid pipe and side exhaust on it. I wanted to go long tube and catless so this off road set up is perfect. Sounds amazing too and people respect it on the street! Once the headers are you you just un bolt the existing h pipe and pop it on. The hardest part it the headers but this was super easy.


    Year: 2011 Submodel: GT

    Helpful (8)

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