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LTH 1-7/8 in. Long Tube Headers (11-14 GT)

Market Price $1,209.99 You Save 9% ($110.00)
Our Price


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  • Item 384481
  • MPN# FDLH0007T

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Features & Details

  • Increases Rear Wheel Horsepower and Torque
  • True Long Tube Header
  • Modular Design
  • Free Flowing 1-7/8" Mandrel-Bent Tubing
  • 304 Stainless Steel Construction
  • LTH Titan™ Uniform Satin Finish
  • Intended for Off-Road, Track Use
  • Fits 2011-2014 GT Mustangs
Horsepower and Torque. Improve the performance of your 5.0L coyote powered Mustang by replacing those restrictive stock manifolds with a set LTH True Long Tube Headers for an increase in horsepower and torque. LTH headers were developed to give you the best balance of low end and top end power when installed with a matching LTH shorty Mid Pipe.

Modular Design. LTH engineered their 2011-2014 GT exhaust using a unique "modular" design that allows you to upgrade one section of your exhaust at a time - including the headers, Mid Pipe, over axle pipes or axleback. LTH True Long Tube Headers are longer than other brands so called long tube headers so that no special Mid Pipe is required for installation. They will bolt right up to the factory H-Pipe or any "stock length" Mid Pipe including LTH's very own catted or off-road versions making them a true modular replacement.

Stainless Steel Construction. LTH Long Tube Exhaust Headers are manufactured in the USA from mandrel bent 1-7/8" diameter 304 stainless steel tubing for superior airflow, durability and corrosion resistance. They are completed in LTH's Titan™ Uniform Satin Finish for great looks.

LTH Titan™ Uniform Satin Finish. Titan™ is LTH's unique proprietary process that produces a bright uniform satin finish over the entire part to eliminate the ugly discoloration from welds, heat, and scratches that are encountered during manufacturing; making it the perfect exhaust finish for high end show cars. Not only does the process create a show quality finish, but it also strengthens the stainless steel to eliminate microscopic sharp edges created during welding that could, if not removed, become tears and cause the product to fail.

Required Upgrade. For proper operation and maximum power potential these Long Tube Headers will require reprogramming the vehicles computer. AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles ECU for proper operation.

Application. These 1-7/8" LTH True Long Tube Headers are designed to fit the 2011-2014 GT Mustangs equipped with the coyote 5.0L DOHC V8 engine. LTH long tube headers can be installed with the stock Mid Pipe or one of their LTH shorty Mid Pipes (see options above).

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

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Driver Side Header
  • (1) Passenger Side Header
  • (2) O2 Sensor Bung Caps
  • (2) O2 Sensor Extension Harnesses
  • (2) Ball socket clamps
  • LTH Installation Instructions
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish : LTH Titan™ Uniform Satin Finish
Type Mid Pipe Required: LTH Shorty Fitment: 2011-2014 5.0 GT Mustangs
Will it fit my Mustang?
  • GT - 11, 12, 13, 14

Customer Photos

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2 Questions / 2 Answers

Ask a Question

How thick is the flange on these headers?


  • Unfortunately, we do not have the spec on the thickness of the header flange on these, it would be best recommended to contact LTH to see if they would be able to measure the thickness of the flange for you.


Helpful (0)

Who manufactures these headers? Are there any dyno or flow tests available for them?


  • The manufacturer of the LTH Long Tube Headers - 1-7/8 in (11-14 GT) is a company called Long Tube Headers. The horsepower gain potential is 9% and the torque gain potential is 8%.


Helpful (0)

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 5 5
  • Exhaust Note 5 5
  • Fit & Finish 5 5
  • Bang For Your Buck 5 5

  • 5/5

    Installation Time: Afternoon

    May 20, 2016


    Iv been running these lth longtubes for about a month now and I really like them! It was a good power gain and the fit was good. The install took my friend and I a good 6 hours. But they are well worth the time and money. I have borlas, 3" heart throb off road x-pipe and cat back and it sounds amazing! It took a little modifying to make the Heartthrob xpipe fit but we were able to make it work. Great product, I highly recommend these lth longtubes if your looking for headers!


    Year: 2014 Submodel: GT

    Helpful (0)

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