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Kooks 3 in. Catted H-Pipe (11-14 GT w/ Long Tube Headers)

Market Price $745.99 You Save 12% ($87.50)
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$658.49 (kit)

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  • Item 398874

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Ship to: Ashburn - 20149
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    Features & Details

    • Increases Airflow to Maximize Power
    • Intimidating Race Car Growl
    • Catted H-Pipe Design
    • Kooks High-Flow Race Catalytic Converters Included
    • 3" Mandrel-Bent Tubing
    • 304 Stainless Steel Fabrication
    • Stainless Steel Finish
    • Intended for Street Use
    • Designed to be Used with Kooks Long Tube Headers
    • Fits 2011-2014 Ford Mustang GT with Long Tube Headers
    Maximize Your Driving Experience. The Kooks 3” Catted H-Pipe is designed to give your Mustang GT more horsepower and torque than any other option on the market. Race and dyno tested, the 3” Catted H-Pipe has proven itself to be a performance enhancement that every muscle car lover needs.

    Get That GT Growl. Every Kooks H-Pipe is designed to satisfy the exact needs of your engine, so you can rest assured that it will be the perfect fit for your Mustang GT, delivering that perfect race car growl you've been searching for. The sound is louder than the typical stock exhaust but doesn't have an obnoxious whine.

    High-Flow Cats Included. With the exhaust, you will also receive the flawless Kooks high-flow race catalytic converters, built with a 400-cell count catalyst for the absolute height of excellence. The Kooks cats are a significant improvement from restrictive, factory cats.

    High-Quality Construction. The Kooks H-Pipe is built from aircraft-quality, mandrel-bent steel. With a classic, stainless steel finish, it will be a sleek addition to your vehicle that won't degrade over time.

    Application. The Kooks Catted H-Pipe is designed for use with any 2011 to 2014 Ford Mustang GT with a 5.0L Coyote engine. Kooks Long Tube Heads are required.

    Important Note. This product is not legal for sale, use, or installation on licensed vehicles in California. This product does not meet CARB compliance.

    Fitment: 2011 2012 2013 2014 Details

    MPN# 11413500

    CA Residents: WARNING: Cancer and Reproductive Harm -

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

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    Questions & Answers (7)

    5 Top Rated Questions

    Will I be able to use my stock headers with this

    • This cannot be used with stock headers.

    Helpful (0)

    Will these fit 2011 mustang gt with 2016 5.0 engine?

    I want a deep muscle car rumble will this mid pipe help me achieve that?

    Will this work with borla ATAK longtube headers? And would it remove a check engine light?

    • A Borla downpipe would be required for your Borla longtubes, mixing manufacturers of the two components will result in poor fitment. This midpipe would not eliminate a check engine light caused by the installation of longtube headers.

    Helpful (0)

    Does this mid pipe come back down to 275 to fit the factory over axle pipes?

    • This would connect back to 2.75" yes.

    Helpful (0)
    Post Your Question
    2 More Questions
    Do i need to run a tune after header and h pipe catted or not catted 1 answer
    will these work with Pypes long tube headers 1 answer

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    Customer Reviews (3) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Loudness / Volume 4 4
    • Exhaust Note 5 5
    • Fit & Finish 5 5
    • Bang For Your Buck 5 5

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      December 04, 2018

      Kooks Catted H Pipe

      I purchased this and the Kooks long tube headers on Cyber Monday, and it was the best decision. I took it to my local shop and they had them installed in a day. The fitment was great and the sound is amazing. Sound at idle or cruising is louder, but not obnoxious, and it roars alive once the gas is pressed. Recommend 11/10


      Year: 2014 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      October 13, 2018

      Great headers

      Great mid-pipe I paired these with the kooks long tube headers. I already had the Borla atak exhaust. The rumble got deeper and when you hit above 3500 it roars


      Year: 2013 Submodel: GT

      Helpful (10)

    • 5/5

      Installation Time: Less than 1 Hour

      February 06, 2018

      paw-paw's red candy

      Perfect fit!!! Sounds awesome!!!! Absolutely love it!!!!


      Year: 2011 Submodel: GT

      Helpful (10)

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