2015-18 Mustang Kooks Complete Competition Exhaust System - Off-Road - GT350 by Kooks

Details   |  Description
  • Kooks Mustang Complete Competition Exhaust System  - Off-Road - GT350 (15-17)
Kooks Mustang Complete Competition Exhaust System  - Off-Road - GT350 (15-17)

Want a distinct sound from your 5.2L Voodoo engine? This complete, off-road exhaust system from Kooks is the perfect choice for your GT350!

Item #KOK-1154F310

Your Price: $3,379.29

Market Price:$3,599.97
You Save 6.13 % ($220.68)

  Ships from supplier in 12-14 business days

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  • Complete Exhaust System
  • Made in the USA
  • Direct Bolt On
  • Retains Multi-Mode Exhaust Feature


  • 3" Mandrel Bent Tubing
  • 3" Oval Race Mufflers
  • Stepped Headers
  • High-Flow Catalytic Converters

What's in the Box

  • (1) Complete Exhaust System

Made in the USA

Product Description

Kooks Complete Off-Road Exhaust System
If you own a 2015-2018 Shelby GT350 and are looking for a complete, catless exhaust system, then this Kooks exhaust kit is the perfect solution. Manufactured from T304 stainless steel tubing, each piece of this kit is engineered to be a direct replacement for your factory GT350 exhaust. This system features stepped headers, cross-over pipes without catalytic converters, X-Pipe, and Kooks' tried-and-true 3" oval race mufflers.

Kooks Stepped Headers
The stepped headers in this system define the art of "scavenging". These headers start out a 1 3/4" diameter and then widen to 1 7/8" for optimum horsepower and torque. The end of the headers feature a 3" exhaust flange which bolts directly to the included off-road mid-pipe.

Kooks Off-Road Piping
This exhaust system features a catless midsection between the headers and X-Pipe. This off-road piping is made from the same high quality, T304 stainless steel mandrel bent materials to ensure great exhaust flow for increased power and torque.

Kooks COMP X-Pipe and Mufflers
The Kooks Competition X-pipe features the same T304, mandrel bent stainless tubing and connects to the very popular, 3" oval race mufflers. This muffler design helps achieve a very distinct, aggressive exhaust tone. The mufflers then exit to the quad tips that are 2.5" in diameter and will perfectly fill the factory tips located on the rear valance.

Installation/Tune Note
-Installation of long tube headers will require custom tune to prevent damage to your vehicle. If you already have a custom tune on your Mustang, please consult with your tuner prior to installation and operating your Mustang.

- Fits 2015-2018 Mustang Shelby GT350

Kooks Exhaust Warranty - Click Here

-Legal in California only for racing vehicles which may never be used upon a highway.
-It is illegal to remove a properly functioning catalytic converter.
-Not Legal for sale or installation on vehicles operated on public roads in California.

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Vehicle Applications

Ford Mustang - 2015 (15) - 2016 (16) - 2017 (17) - 2018 (18)

About This Brand

Kooks - Get Kookin with Kooks
Kooks Custom headers has been making quality custom headers since 1962. Kooks Headers is a family owned and operated company which has prided itself on making the highest, most horsepower production header and exhaust systems for your Mustang & SVT Lightning. From drag to circle track, road racing, motorcycle, and even offshore boats, Kook’s Headers has helped set records and win races. Some of the biggest and most dominant names in NHRA, ADRL, IHRA, NMCA, NMRA, NASCAR, SCCA, and NASA and continue to run Kook’s headers and win championships.

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