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Kooks 2.5 in. Catted X-Pipe (99-04 4.6L w/ Long Tube Headers)

Item 65528
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    Features & Details

    • Required for Kooks Long Tube Headers with a 2.5 in. Collector
    • Improves Exhaust Flow and Sound
    • Raspy Race Car Growl
    • High Flow Catalytic Converters Included
    • 2.5" Mandrel-Bent 304 Stainless Steel Tubing
    • Fits 1999-2004 GT, Bullitt, Mach 1 and Cobra
    Increase Performance. Add even more horsepower and torque to the rear wheels of your 1999-2004 4.6L Mustang with a Kooks Catted Shorty X-pipe. A Kooks Catted X-pipe features high flow race catalytic converters to increase overall performance. This Kooks 2.5" X-pipe is specifically designed to be used with Kooks Long Tube Headers.

    Race Car Growl. This free flowing Kooks X-pipe not only increases power, but it also adds a crisp raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

    Quality Construction.
    Manufactured from 2.5" diameter mandrel bent 304 stainless steel tubing, Kooks X-pipes feature a merged "X" crossover for superior exhaust flow.

    This Kooks 2.5" Shorty Catted X-Pipe is specifically designed to fit the 1999-2004 GT, Bullitt, Mach 1 and Cobra Mustangs with Kooks Long-Tube Headers installed.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    MPN# 11203240

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Catted Shorty X-Pipe
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Shorty "X"Type Headers Required:Long Tube
    Piping Material:304 Stainless SteelPiping Size:2.5"
    Catalytic Converter:"Yes"Fitment:1999-2004 GT, Bullitt, Mach 1 and Cobra
    Will it fit my Mustang?

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          Customer Reviews (4) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$500-$1000

          • Loudness / Volume 4.5 4.5
          • Exhaust Note 4.5 4.5
          • Fit & Finish 4.75 4.8
          • Bang For Your Buck 4.25 4.3

          • 5/5

            Installation Time: Afternoon

            February 06, 2017

            Great investment

            Makes a big difference in the was the cars run from idle on


            Year: 2002 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Less than 1 Hour

            December 18, 2015

            Kooks exhaust

            Great Product. Kooks takes great pride in their products. It shows in their design and construction. It's always a great fit


            Year: 2003 Submodel: Mach 1 Irving, Tx

            Helpful (10)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            August 27, 2015

            1 3/4in Kooks LT Headers and 3in catted X-pipe install

            The headers are not an easy task for the DIY guy I had a speed shop install them. They are very nicely constructed and awesome looking. The fit in some areas are very tight I can feel through the body, a little rubbing going on at times. I believe its coming from the lower front brace where the header exits it barely clears by an 1/8 of an inch. They come down very low, so you have to careful with them speed bumps.The sound was extremely surprising, my Kooks set up is combined with a MAC stainless cat-back I was expecting it to be annoying loud at idle, but it is the total opposite, surprisingly the car is quitter than before at idle? You would never imagine that my car has a full LT Header exhaust system. At WOT it sounds monstrous, very angry! After a re-tune I also gained over 40rwhp/32lbft on a conservative tune with 91 octane. Overall I am extremely pleased with the product


            Year: 2004 Submodel: Cobra Colorado Springs So.

            Helpful (9)

          • 5/5

            Installation Time: Less than 1 Hour

            October 24, 2013

            Great X-Pipe

            Not a whole lot else to say other than it's a quality x-pipe to go along with the kooks headers.


            Year: 2002 Submodel: GT Newmarket, Suffolk CB8, UK

            Helpful (11)

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