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Pypes 1-7/8 in. Long Tube Off-Road Headers (15-17 GT)

Item 404902
AmericanMuscle no longer carries the Pypes 1-7/8 in. Long Tube Off-Road Headers (15-17 GT). Please check out 2015-2020 Mustang Headers for an updated selection.

Features & Details

  • Improves Rear Wheel Horsepower and Torque
  • Increases of over 50HP with a tune
  • Long Tube Header Design
  • Three-Inch Off-Road Connection Pipes (Steps Down to 2.50 Inches)
  • Free Flowing Mandrel-Bent Tubing
  • 304 Polished Stainless Steel Construction
  • 1-3/4 to 1-7/8 Inch Step Header with 3-Inch Collector
  • Intended for Off-Road Track Use
  • Fits Left Hand Drive Models Only
  • Fits 2015-2017 GT Mustangs
Improves Horsepower and Torque. Leave your opponent standing still at the starting line by installing a set of Pypes Long Tube Off-Road Headers on your GT. Pypes Off-Road Headers are engineered to improve the exhaust flow of your 5.0L Mustang for a measured increase in rear wheel horsepower and torque. Increases of 27 RWHP have been seen without a tune and over 50 RWHP with a custom tune. Pypes 1-7/8 Inch Long Tube Off-Road Headers are ideal for use on naturally aspirated 5.0L Mustangs, but really come into their own when you decide to step up to a bigger cam or supercharger.

Quality Construction. Pypes 304 stainless steel Long Tube Exhaust Headers are manufactured using step tube technology. These Long Tube Headers are constructed from free flowing CNC mandrel-bent 1-3/4-inch primary tubes that step up to 1-7/8 inches and then merge at a 3-inch collector. The collector features a power spike design for excellent exhaust flow. Pypes Long Tube Headers are then completed in a bright polished finish for impressive good looks.

Required Upgrade. To realize the full power potential that these Long Tube Off-Road Headers have to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. These Pypes Long Tube Off-Road Headers are specifically designed to fit the 2015 to 2017 GT Mustangs equipped with the DOHC Coyote 5.0L V8 engine. These headers with connection pipes are a direct bolt on to the stock 2.50-inch exhaust system.

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

Please Note. These Headers are intended for left hand drive applications only.

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Driver Side Long Tube Header
  • (1) Passenger Side Long Tube Header
  • (2) Off-Road Connection Pipe Assemblies
  • O2 Sensor Extensions
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Type Mid Pipe Required: 2.5" Stock or 2.5" Aftermarket
Material: 304 Stainless Steel Finish: Polished
Catalytic Converter: "No" - For off-road use only Fitment: 2015-2017 GT Mustangs
Will it fit my Mustang?

    Customer Photos

      Questions & Answers (4)

      4 Top Rated Questions

      Will they sound good with a magmaflow companion catback 3inch exhaust ?

      Will this fit a Roush cat back exhaust?

      • Yes, these headers will work with the Roush cat-back exhaust.

      Helpful (0)

      will these fit with a Borla Sport cat Back exhaust on a 2015 GT PPack

      • As long as your cat-back is 2.5" this will work.

      Helpful (0)

      These will fit my stock s550 exhaust system corrects?

      • Yes, these headers with connection pipes are a direct bolt on to the stock 2.50-inch exhaust system.

      Helpful (0)
      Post Your Question

        Customer Reviews (2) Write a Review

        Overall Rating 3

        out of 5 stars

        Installation Time:Full Day

        • Loudness / Volume 5 5
        • Exhaust Note 3 3
        • Fit & Finish 3 3
        • Bang For Your Buck 3 3

        • 1/5

          April 02, 2019

          Defect product

          Not fit defect product. Do you guys inspect it before sending it to the costumer. I didn’t inspect when I got it. Return policy expired already. A lot of leak. This the first time. From this ...Idk.. the product creaked I thought with the gasket will be fine but not... too many leak


          Year: 2017 Submodel: GT

          Helpful (0)

        • 5/5

          Installation Time: Full Day

          November 23, 2018

          Great LTH for the price

          Installed myself with a friend with no fitment issues. Came with all the right hardware, ran them for over a month and no leaks anywhere, and they look and sound great. I had a tune ready and uploaded it on install and the gains were very notice, even more than I expected. The car pulls so much harder especially in mid-high range. I'd definitely recommend these headers. They did everything I wanted them to do and more and for under $1000


          Year: 2015 Submodel: GT

          Helpful (10)