Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
1-877-887-1105
Every day 8:30AM EST - 11:00PM EST
Win Any Wheel & Tire Package! Enter Daily

Kooks 1-3/4 in. Long Tube Headers (11-14 GT500)

Market Price $1,238.99 You Save 12% ($143.12)
Our Price

$1,095.87

FREE Shipping

  • Item 65519
  • MPN# 11422200

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Increases RWHP and Torque
    • Long Tube Header Design
    • Free Flowing 1-3/4" Mandrel-Bent Tubing
    • 304 Stainless Steel Construction
    • TIG Welded for Strength
    • Natural Finish
    • Fits 2011-2014 Shelby GT500 Mustangs
    More Horsepower and Torque. A set of Kooks Long Tube Headers will greatly improve the performance of your Shelby GT500 Mustang. Kooks Headers feature an integrated venturi style collector that increases exhaust scavenging, and reduces turbulence to improve your GT500's exhaust flow over the restrictive stock manifolds, boosting your Pony's horsepower and torque numbers.

    Quality Construction. Kooks Long Tube Exhaust headers are manufactured from 1-3/4" mandrel bent 304 stainless steel tubing for superior airflow. These headers are TIG welded and feature a leak-free ball flange design for optimal performance and a better than OEM fit. Stainless steel hardware and gaskets are included.

    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 these Long Tube Headers have to offer, AmericanMuscle recommends a custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

    Application. These Kooks Long Tube Headers are designed to fit the 2011-2014 Shelby GT500 Mustangs. Kooks long tube headers require the use of a Kooks shorty midpipe in order to be installed properly (see drop down option above).

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

    Fitment: 2011 2012 2013 2014 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (1) Driver side header
    • (1) Passenger side header
    • (2) Header Gaskets
    • Installation hardware
    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
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos (1) Submit Your Photo

    View 1 Photo

    Q & A

    No questions about this product yet.

    Ask the First Question

    Reviews

    Related Mustang Categories