Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $15,000!! Enter Now

Kooks Catted X-pipe (05-10 GT w/ Long Tube Headers)

Item 65508
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $744.87 You Save 12% ($85.69)
Our Price


FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Required for Kooks Long Tube Headers
      • Improves Exhaust Flow and Sound
      • Raspy Race Car Growl
      • High Flow Catalytic Converters Included
      • 2-1/2" Mandrel-Bent 304 Stainless Steel Tubing
      • Fits 2005-2010 GT and Bullitt Mustangs


      Increase Performance. Add even more horsepower and torque to the rear wheels of your 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 x-pipe is specifically designed to be used with Kooks Long Tube Headers.

      Race Car Growl. This free flowing Kooks x-pipe for the 2005-2010 GT Mustang's 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.

      Application. This Kooks Shorty Catted X-Pipe is specifically designed to fit the 2005-2010 4.6L GT and Bullitt Mustangs with either Kooks Manual or Automatic Long Tube Headers installed.

      Fitment: 2005 2006 2007 2008 2009 2010 Details

      MPN# 11313200

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (8)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 8 customers

      Installation Time: Full Day

      Installation Cost: $500-$1000

      • September 03, 2019

        5 2005 GT - KentonD Installation Time: Weekend

        Looks like a motor now!

        They sound and look great! I wouldnt want to do it again as I did it by myself with the car on ramps and jack stands...a lift would have been much easier...

        Helpful (0)
      • August 13, 2019

        5 2010 GT - MikeW Installation Time: Shop Install Installation Cost: $250-$500

        header install

        love em...added hps and the sound is incredible.definetly recommend these!

        Helpful (0)
      • May 10, 2018

        5 2006 GT - ChubbyStang Installation Time: Shop Install


        Paired with MAC Boom tubes... my car sounds mean!!!!

        Helpful (9)
      • April 20, 2018

        5 2009 GT - Christopher Installation Time: Afternoon


        What a great sound the pipes puts out and they look great to. Thanks AMERICAN MUSCLE for another awesome product.

        Helpful (9)
      • January 23, 2018

        5 2007 GT - FrankS Installation Time: Full Day

        Great sound and added horsepower

        Best choice for my Rousch Mustang it has given more power and a great sound very happy with the purchase

        Helpful (9)
      • December 23, 2017

        5 2009 GT - DaleL Installation Time: Shop Install Installation Cost: $500-$1000

        Excellent Product

        Got this as part of the Kooks Header\Catted X-Pipe kit to replace the existing stock exhaust system to improve performance and prepare for a future SC install. Fit was very good and the engine's low end response improved noticeably over the stock exhaust. Got even better when I modified the stock 4.6L tune to incorporate the Kooks header install. Very happy! Took all to the local Ford dealership to install as I don't have the necessary jack stand height to accommodate the install (installed both headers and X-pipe at the same time) but install took far too long due to the kit having missing parts that were supposed to be included so had to work w\ AM to get all straightened out. Otherwise excellent!

        Helpful (10)
      • June 22, 2017

        5 2008 Bullitt - Zack Installation Time: Less than 1 Hour

        Kooks x pipe

        The fit was awesome and looks great too! its a bit on the expensive side but well worth the money.

        Helpful (9)
      • December 26, 2013

        5 2008 GT - IlyaT Installation Time: Afternoon


        Had an original early design kit without brace on the x, so it has cracked on the weld. Got this one as replacement and it is a new design now, giving a piece of mind about longevity.

        Helpful (9)

      Questions & Answers (8 answers)

      5 Top Rated Questions

      can these pypes and the cats be painted with a flameproof coating designed to withstand temps up to 2000 degrees F that was designed for headers and exhaust systems? i'm more concerned about the cats.

      Will my borla arak axle back work with this set up?

      Does the x pipe in this kit work with a borla atak axle back system?

      Can i put theses on without the headers first and just the original stock manifold exhaust?

      • This Kooks Shorty Catted X-Pipe is specifically designed to fit the 2005-2010 4.6L GT and Bullitt Mustangs with either Kooks Manual or Automatic Long Tube Headers installed. It will not install properly without the headers because it is shorter than the factory x pipe.

      Helpful (0)

      Will these work with the Pypes Long Tube Headers so I can pass my states emmisions testing?

      • No, this Kooks mid pipe is made for Kooks long tubes only

      Helpful (0)
      Post Your Question
      3 More Questions
      Are there replacement high flow cats for this Kit (Item #65508 MPN# 11313200)? Kooks or otherwise, that would fit. (Part Numbers would be greatly appreciated). Thanks in advance 1 answer
      What is the best kooks off-road x pipe for my 09 mustang?? 1 answer
      Catted Is the catalytic converter necessary for a daily driver? I don't know whether to get this or the offroad X-pipes 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) X-pipe
      • (2) Catted down pipes
      • (2) Clamps

      Tech Specs

      Mid Pipe Specifications
      Style Mid Pipe: Shorty "X" Type Headers Required: Kooks Long Tube
      Piping Material: 304 Stainless Steel Piping Size: 2.5"
      Catalytic Converter: "Yes" Fitment: 2005-2010 GT & Bullitt

      Will It Fit My Mustang

      • Bullitt - 08, 09
      • GT - 05, 06, 07, 08, 09, 10

          Related Mustang Categories