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Kooks Header and Off-Road X-Pipe Combo - 1-3/4 in. (11-14 GT500)

1 Reviews
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$1,452.99

(kit)
  • Item #65525
  • MPN#11422200

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  • Market Price $1,619.99
  • You Save 10% ($167.00)
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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 2011-2014 Shelby GT500 Mustangs
Description
Improve Horsepower And Torque. The Kooks Long Tube Header and Off-road Shorty X-pipe combo kit for the Shelby GT500 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 1-3/4" 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 3" 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 Bama 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 2011 to 2014 Shelby GT500 Mustangs.

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

Mustang Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Driver side header
  • (1) Passenger side header
  • (2) Gaskets
  • (16) Small bolts
  • (8) Flat washers
  • (4) Long bolts
  • (4) Nuts
  • (1) X-pipe
  • (2) Down pipes
  • (2) Clamps
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish : 304 Stainless steel
Type Mid Pipe Required: Kooks Shorty X Fitment: 2011-2014 Shelby GT500


Mid Pipe Specifications
Style Mid Pipe: Shorty "X" Type Headers Required: Kooks Long Tube
Piping Material: 304 Stainless Steel Piping Size: 3"
Catalytic Converter: "NO" - For off-road use only Fitment: 2011-2014 Shelby GT500
Will it fit my Mustang?
  • GT500 - 11, 12, 13, 14

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5.0

out of 5 stars

1 Customer Recommends this Product

Installation Time:Full Day

  • Performance Gain: 5 5/5
  • Fit: 5 5/5
  • Bang For Your Buck: 5 5/5
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  • 5/5 Yes, I recommend this product

    May 27, 2013

    GT500 Kooks Headers & Off road X-pipe

    Install took a day. After the install, started the car, and WOWWWWWW!!!!! Sounded soooo much meaner and louder with this setup. LOVE IT!!!

    1992Foxbody

    Year: 2011 Model: GT500 Driving Style: Daily Driver 'Stangs I have owned: 4 Chicago, IL, USA

    Helpful (1) (0)

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