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Kooks Header and Off-Road X-Pipe Combo - 1-5/8 in. (99-04 GT)

1 Reviews
Our Price

$1,389.99

  • Item #65529
  • MPN #5998S
    6011
  • Market Price $1,544.43
  • You Save 10% ($154.44)
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Features
  • Increase rear wheel horsepower and torque
  • Includes long tube headers w/ matching off-road X-pipe
  • 304 stainless steel construction
  • For off-road, track use
  • Free flowing mandrel-bent tubing
  • Fits 1999-2004 GT and Bullitt Mustangs
Description
Improve Horsepower And Torque. The Kooks Long Tube Header and Off-road Shorty X-pipe combo kit for the GT and Bullitt Mustang will balance out the exhaust pressure to increase flow over the restrictive stock factory exhaust system resulting in more horsepower, torque, and better throttle response. Quality Construction. Manufactured from 1-5/8" mandrel bent 304 stainless steel tubing Kooks Long Tube Headers are TIG welded for strength, and feature a leak-free ball flange design to fit perfectly into the included 2.5" diameter 304 stainless steel Shorty X-pipe for excellent exhaust flow and performance.

Natural Finish. These Kooks Headers feature a natural stainless steel finish, which provides an aggressive appearance to your engine bay. This is not a heat-resistant coating, AmericanMuscle recommends the use of Exhaust Heat Wrap for high performance applications.

Recommended Upgrade. To realize the full power potential that this Kooks Long Tube Header and X-pipe Kit has to offer, AmericanMuscle recommends a custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. This Kooks Long Tube Header and matching off-road shorty X-pipe combo kit is designed specifically for the 1999-2004 4.6L GT and Bullitt Mustangs.

Technical Note: This Kooks product is intended for off road use, and is not legal for use in emission restrictive states.

Mustang Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • Kooks Long Tube Headers
  • Kooks off-road shorty X-Pipe
  • Necessary Gaskets
  • O2 Extensions
Installation Info

Installation Time: (approx) a Day

Difficulty Level:Mechanical expertise or professional installation required.

Fitment
  • Bullitt - 01
  • GT - 99, 00, 01, 02, 03, 04

Customer Photos

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Q & A (1 Questions, 0 Answers) Ask a Question

Will this fit the Manual coupe?

CJNOVA Year: 2004 Model: GT

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5.0

out of 5 stars

1 Customer Recommends this Product

Installation Time:Weekend

  • Performance Gain: 5 5/5
  • Fit: 5 5/5
  • Bang For Your Buck: 5 5/5
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  • 5/5

    Great sound and horsepower gain.

    May 14, 2013

    Installed on a 2003 Saleen S/C Car. Installation was crazy and almost impossible because of absolutely no clearance but after a whole lot of persistence they are finally installed. Without having it tuned yet I could feel the Horsepower gain and the sound is awesome. Would definitely recommend these headers and x-pipe but plan a weekend or longer for install.

    saleen276

    Year: 2003 Model: Other Driving Style: Show 'Stangs I have owned: 4 Chicago, IL, USA

    Helpful (3) (0)

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