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

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  • Item #65524
  • MPN#11422200

  • Market Price $1,699.99
  • You Save 9% ($160.00)
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  • Increase Rear Wheel Horsepower and Torque
  • Includes Long Tube Headers w/ Matching Catted X-Pipe
  • 304 Stainless Steel Construction
  • High Flow Catalytic Converters
  • Free Flowing Mandrel-Bent Tubing
  • Fits 2011-2014 Shelby GT500 Mustangs
Improve Horsepower And Torque. The Kooks Long Tube Header and Catted 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 custom tune with either a SCT SF3 or SCT iTSX Wireless Custom Tuner.

Application. This Kooks Long Tube Header and matching catted shorty X-pipe combo kit is designed specifically for the 2011 to 2014 Shelby GT500 Mustangs.

Fitment: 2011 2012 2013 2014 Details

Won't fit? Add an exception

What's in the Box
  • Kooks Long Tube Headers
  • Matching Kooks X-Pipe
  • Necessary Gaskets
  • O2 Extensions
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish : 304 Stainless steel
Type Mid Pipe Required: Kooks Shorty X Fitment: 2011-2014 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: "Yes" Fitment: 2011-2014 GT500
Will it fit my Mustang?
  • GT500 - 11, 12, 13, 14

Customer Photos

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Q & A

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engine code So with this set up I won't have a problem with my check engine light?

will1983 Year: 2013 Model: GT

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