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Kooks Cat-Back Exhaust w/ X-Pipe (15-17 GT Fastback w/ Kooks Headers)

Market Price $1,550.94 You Save 10% ($155.09)
Our Price

$1,395.85

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  • Item 386641
  • MPN# 11515100

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Aggressive Muscle Car Exhaust Note
  • Polished Oval Race Mufflers
  • Full 3" Diameter Stainless Steel Tubing
  • 4" Polished Stainless Steel Slash Cut Tips
  • Includes Stainless Steel X-Pipe
  • Direct Fit Replacement Upgrade
  • Fits 2015-2017 GT Fastback Mustangs w/ Kooks Long Tube Headers
Aggressive Exhaust Note. Upgrade that quiet exhaust system on your coyote powered S550 GT Fastback with a Kooks Cat-Back Exhaust System with X-Pipe. Designed for use with Kooks Long Tube Headers, this full 3" catback system 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 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" highly polished 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 to Kooks Long Tube Headers without any modifications required, making it a direct fit, bolt-on replacement upgrade.

Application. This Kooks Cat-Back Exhaust with X-Pipe and Polished Tips is specifically designed to fit the 2015-2017 GT Fastback Mustang with a 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

What's in the Box
  • (1) Mid-pipe
  • (2) Connection Pipes
  • (2) Over-Axle Pipes
  • (2) Oval Race Mufflers
  • (2) Slash Cut Tips
  • (10) Clamps
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 3" Tip Size: 4"
Muffler Type: Race Muffler Fitment: 2015-2017 GT Fastback w/ Kooks Long Tube Headers
Will it fit my Mustang?
  • GT - 15, 16, 17

Not compatible with Convertibles due to different bracing; Not compatible with stock headers

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Less than 1 Hour

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



  • 5/5

    Installation Time: Less than 1 Hour

    May 19, 2016

    Warns the competition

    Great sound. Flows incredible But NOT for those trying to roll in stealth mode Combined with the full length tubes, the power and rev comes alive!

    Cambambalam

    Year: 2015 Submodel: GT

    Helpful (1)

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