Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
Mon - Sun, 8:30 AM EST - 11:00 PM EST
Win A 700+ HP 2018 RTR Mustang Enter Now!

Stainless Works 1-7/8 in. Long Tube Off-Road Headers w/ XL Leads (15-17 GT w/ SW, MBRP or Corsa Cat-Back)

Market Price $1,675.99 You Save 12% ($193.99)
Our Price

$1,482.00 (pair)

FREE Shipping
  • Item 397810
  • MPN# M15H3ORLG

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
In Stock Ships same business day.
Ship to: ASHBURN - 20146
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
Choose options to add to cart
    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 Horsepower and Torque
    • Strong Powerful Sound
    • Long Tube Header Design
    • 3" Off-Road Leads
    • 3/8" Thick Flanges
    • 1-7/8" Primaries
    • 3" Slip-Fit Collectors
    • Free-Flowing Mandrel Bent Tubing
    • 304 Stainless Steel Construction
    • Off-Road or Track Use Only
    • Calibration Required for Operation
    • Lifetime Warranty
    • Fits 2015-2017 Mustang GTs with SW, MBRP or Corsa Cat-Back
    Unleash Your GT's Hidden Power. The Stainless Works 1-7/8" Long Tube Off-Road Headers with XL Leads is designed to unleash your Mustang GT's hidden power that the restrictive stock headers keep hidden. When matched with a SW, MBRP or Corsa 3" Cat-Back you will have a full 3" exhaust system that will increase the rear wheel horsepower and torque of Coyote powered GT.

    Hear and Feel the Power. These Stainless Works 1-7/8" Long Tube Headers not only improve the performance of your 5.0L V8 powered Mustang, but they will also improve its sound as well. With a cat-less high-flow design, these Long Tube Headers are less restrictive than stock allowing you to pick up a few decibels in your exhaust note for an aggressive sound you can hear and feel.

    Quality T-304 Stainless Steel Construction. CNC mandrel bent, these headers are constructed from durable T-304 stainless steel tubing. Starting with 3/8" thick flanges, these Long Tube Headers feature 1-7/8" primary tubes that merge into 3" slip-fit collectors. The collectors feature a merge spike design for excellent exhaust flow. TIG-welded for superior strength, these Headers will last a lifetime.

    Calibration Required. Installation of these Long Tube Headers will require the use of a Handheld Tuner to reprogram the vehicles computer (ECU) for operation. By reprogramming your Mustangs ECU you will be able to realize the full power potential that these headers have to offer.

    Not CARB Certified. These Headers are not CARB certified, therefore they are not legal for use in California or any other state adopting California emission standards. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

    Limited Lifetime Warranty. Stainless Works headers and exhausts are designed to take the punishment of your motor, and are backed by a Limited Lifetime Guarantee on material and workmanship. Some exclusions may apply, please see manufacturer's warranty for details.

    Application. Stainless Works 1-7/8 in. Long Tube Off-Road Headers with XL Leads have been designed for installation on 2015-2017 Mustang GT models equipped with SW, MBRP or Corsa 3" Cat-Back systems. These Headers are intended for left hand drive applications only.

    Fitment: 2015 2016 2017 Details

    What's in the Box
    • (2) Headers
    • Hardware for Installation
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • GT - 15, 16, 17

    For Use w/ SW, MBRP or Corsa Cat-Back Systems

    Customer Photos

    You Might Also Like

    2 Questions / 2 Answers

    Ask a Question

    Does this kit contain 02 extensions and would I need them?


    • The Stainless Works 1-7/8 in. Long Tube Off-Road Headers will include the required O2 sensor extension harness.

      Rob D

    Helpful (1)

    Will this go with the Ford Performance by Borla Sport Catback system?


    • The Stainless Works 1-7/8 in. Long Tube Off-Road Headers will not fit a Ford Performance by Borla Catback System


    Helpful (0)

    More Products You Might Like

    Customer Reviews (1) Write a Review

    Overall Rating 5.0

    out of 5 stars

    Installation Time:Weekend

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

    • 5/5

      Installation Time: Weekend

      December 08, 2017

      Highly recommended

      Great fitment and sound I would highly recoment this item for anyone whose looking for a quality header!


      Year: 2015 Submodel: GT

      Helpful (0)

    Related Mustang Categories