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Kooks Cat-Back Exhaust w/ X-Pipe - Black Tips (15-17 GT)

Market Price $1,722.99 You Save 12% ($199.53)
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  • Item 386638

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    Features & Details

    • Aggressive Muscle Car Exhaust Note
    • Polished Oval Race Mufflers
    • OEM to 3" Diameter Stainless Steel Tubing
    • 4" Black Slash Cut Tips
    • Includes Stainless Steel X-Pipe
    • Direct Fit Replacement Upgrade
    • For Use w/ OEM Exhaust or w/ Kooks Long Tube Header & Connection Pipe System
    • Fits 2015-2017 GT Fastback and Convertible Mustangs
    Aggressive Exhaust Note. Give your coyote powered 2015-2017 GT Fastback the loud aggressive exhaust note of a classic 60's muscle car with a Kooks Cat-Back Exhaust System with X-Pipe. This catback will not only sound great, but will also improve exhaust flow with the included X-Pipe for an increase in horsepower and torque.

    Race Car Growl. The included X-Pipe not only helps increase power, but it also adds a crisp raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

    Stainless Steel Construction. Constructed from mandrel bent OEM to 3" diameter 304 stainless steel tubing for strength and superior corrosion resistance, this Kooks Cat-Back Exhaust System features (2) polished oval race mufflers that end with 4" stealth black 304 stainless steel slash cut exhaust tips.

    Lightweight. Weighing in at approximately 60 lbs, the Kooks Cat-Back Exhaust with X-Pipe is a great choice for track and drag racers looking to shed unwanted weight in the pursuit of quicker times.

    Direct Fit Upgrade. The Kooks Cat-Back Exhaust with X-Pipe includes all the hangers and clamps necessary to bolt straight up in the OEM factory location without any modifications required, making it a direct fit, bolt-on replacement upgrade.

    Application. This Kooks Cat-Back Exhaust with X-Pipe and Black Tips is specifically designed to fit the 2015-2017 GT Fastback and Convertible Mustang with either the stock exhaust system or with Kooks Long Tube Header and Connection Pipe System installed. Not compatible with convertibles.

    Technical Note. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

    Fitment: 2015 2016 2017 Details

    MPN# 11514111

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Mid-pipe
    • (2) Connection Pipes
    • (2) Over-Axle Pipes
    • (2) Oval Race Mufflers
    • (2) Slash Cut Tips
    • (8) Clamps
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: Stainless Steel Tip Material : Black 304 Stainless Steel
    Piping Size: OEM to 3" Tip Size: 4"
    Muffler Type: Race Muffler Fitment: 2015-2017 GT Fastback
    Will it fit my Mustang?

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    Customer Reviews (3) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Loudness / Volume 4.333333 4.3
    • Exhaust Note 4.666667 4.7
    • Fit & Finish 4.666667 4.7
    • Bang For Your Buck 4.333333 4.3

    • 5/5

      Installation Time: Less than 1 Hour

      June 06, 2016

      Review from Kooks Cat-Back Exhaust w/ X-Pipe (15-17 GT)

      kooks exhaust

      love it. The kooks exhaust x pipe, gives you an aggressive sound and more horsepower, you can see the difference, I don't regret anything, so happy about this exhaust


      Year: 2016 Submodel: GT

      Helpful (15)

    • 5/5

      Installation Time: Afternoon

      April 26, 2016


      I've been sound comparing exhausts for my 2015 GT for quite some time now. I've listened to these on Kook's website and they sounded killer so I had to give them a shot. When I fired it up after installing I was blown away, the exhaust note is perfect, not too raspy either. I highly recommend these to anyone on the fence about which catback to buy. They are on the pricier end but if you have the time and money go for it! Kooks did a great job with this system.


      Year: 2015 Submodel: GT

      Helpful (15)

    • 4/5

      Installation Time: Less than 1 Hour

      March 06, 2016

      Review from Kooks Cat-Back Exhaust w/ X-Pipe (15-17 GT)

      Exactly what to expect

      They mounted up really good only problem I had during install was adjusting each side so they evened out coming out of the back of the car sounds really good not a lot of drone now I just need to get the long tube headers to go with them and ill be set don't know if I want to do that install though.


      Year: 2016 Submodel: GT

      Helpful (15)

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