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Stainless Power 1-7/8 in. Long Tube Catted Headers (15-17 GT)

Market Price $1,180.00 You Save 5% ($59.00)
Our Price

$1,121.00

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  • Item 390796-A
  • MPN# SM15HCAT

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Features, Video & Details

  • Increases Horsepower and Torque
  • Long Tube Header Design
  • High-Flow Catalytic Converters Included
  • 1-7/8" Primary Tubes with 3" Collector
  • 3" Catted Connection Pipes (Steps Down to 2.5")
  • Free Flowing Mandrel-Bent Tubing
  • 304 Stainless Steel Construction - Natural Finish
  • Intended for Off-Road, Track Use Only
  • 24-Month Guarantee on Material and Workmanship
  • Designed by Stainless Works
  • Fits Left Hand Drive Models Only
  • Fits 2015-2017 GT Mustangs with Factory 2.5" Exhaust

Review & Installation Video

Review & Install Video

More Horsepower And Torque. Does your GT Mustang spend equal time on the street, strip and track? Then you really need to replace those restrictive cast factory manifolds with a set of Stainless Power Long Tube Headers for the power you need to defeat your competition. Stainless Power Headers feature a pair of high flow catalytic converters and venturi style merge spikes to optimize exhaust flow as well as improve exhaust scavenging. As a result, these Long Tube Headers will dramatically increase the rear wheel horsepower and torque of your Pony throughout the entire RPM range. Stainless Power's Long Tube Catted Headers are perfect for those GT owners who are on a quest for more power and better performance, without the need of breaking their piggy banks.

High Flow Catalytic Converters. Stainless Power's high flowing catalytic converters are engineered to outperform the restrictive stock cats. The included high flow catalytic converters provide a significant increase in exhaust flow for a measured improvement in horsepower and torque at the rear wheels.

Superior Construction. Stainless Power Headers are manufactured to Stainless Works exact design specifications. Stainless Power Headers are CNC mandrel bent from 1-7/8" diameter, 304 stainless steel tubing for excellent exhaust flow and long lasting corrosion resistance. These Long Tube Headers feature TIG welded construction, as well as laser cut 3/8" header flanges for additional strength and leak-free performance.

24-Month Guarantee. Stainless Power is Stainless Works value-line brand of exhaust products designed for the cost conscious consumer that wants a high-quality product at a reasonable price. Stainless Power is so confident in the quality of their Long Tube Headers that they are backed by a 24-Month guarantee on material and workmanship.

Required Upgrade. To realize the full power potential that these Long Tube Catted 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 Stainless Power Long Tube Catted Headers are specifically designed to fit the 2015 to 2017 GT Mustang equipped with the Coyote 5.0L DOHC V8 engine. These headers and connector pipes are a direct bolt on to the stock 2.5" exhaust system.

Technical Note. Not legal for use on pollution controlled motor vehicles; intended for off road use only.These Headers are intended for left hand drive applications only.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Driver Side Header
  • (1) Passenger Side Header
  • (1) Driver Side Connection Pipe
  • (1) Passenger Connection Pipe
  • (2) High-Flow Catalytic Converters
  • (4) Clamps
  • (2) O2 Extensions
  • Hardware
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Type Mid Pipe Required: Stock Factory
Material: Stainless Steel Finish: Natural
Catalytic Converter: "Yes" - For off-road use only Fitment: 2015-2017 GT Mustangs
Will it fit my Mustang?
  • GT - 16, 15, 17

These Headers are intended for left hand drive applications only. These Long Tube Headers are for 15-17 GT Mustangs with the factory Cat-Back Exhaust.

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
Incredible

Me and a friend installed them in my garage over a weekend. The difference between the stock headers and these are absolutely massive. I thought my Mustang was loud before but I sure was proven wrong when ...

Read More
Helpful (1)

5/5
Great power gains.

The headers come out with very good quality in all points. I would not even notice they are manufacture overseas. I can feel an increase in power together with a tune from Bama. The engine is more responsive ...

Read More
Helpful (1)

Overall Rating 5 out of 5 stars
Read All 4 Reviews

Customer Photos (3) Submit Your Photo

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3 Questions / 3 Answers

Ask a Question

Do these headers work with MF competition catback exhaust?

Ed

  • These headers will work with the Magnaflow Competition catback exhaust.

    KevinD92

Helpful (0)

It says for Left hand drive only, what does that mean? I have a 2016 gt with performance package, will this work on it?

MarkT

  • hello, the Euro spec mustang (all mustangs driven across seas) are right hand drive meaning the driver side is where your passenger side is. These headers will work on your mustang just fine for those in the US.

    Cobra_Machine04

Helpful (0)

The info sheet says these are off road use only. Is there is a street legal version of these headers?

JuanR

  • Because of their designed and increased airflow, this headers will not be street legal. Most long tube headers are going to be for off-road use only.

    AshleyK

Helpful (0)

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Customer Reviews (4) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Weekend

Installation Cost:$250-$500

  • Loudness / Volume 4.75 4.8
  • Exhaust Note 4.75 4.8
  • Fit & Finish 4.75 4.8
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Weekend

    December 10, 2016

    Incredible

    Me and a friend installed them in my garage over a weekend. The difference between the stock headers and these are absolutely massive. I thought my Mustang was loud before but I sure was proven wrong when I fired it up after the install. Just idling you can hear the power coming from the exhaust. My cold starts where so beautifully loud that BAMA had to dial them back because apparently my Home Owners Association doesn't appreciate it like I do at 5AM every morning. Besides the sound, the power and results just blew me away. It's an entirely different car and I was not prepared for what I was going to witness. You can feel the massive increase immediately. It's not a small increase either, it's noticeably large and I love it. Like my buddy always said regarding performance parts... There's your bolt ons, there's your tune, then there is headers. Buckle up.

    SteveK

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    September 14, 2016

    Great power gains.

    The headers come out with very good quality in all points. I would not even notice they are manufacture overseas. I can feel an increase in power together with a tune from Bama. The engine is more responsive and also my Borla Stype catback is a bit louder at WOT only but still sounds fantastic, like a race car. I have received lots of compliments about the sound. My only issue is that the passenger side header is slightly touching the frame when I turn left causing small vibrations. But I'm pretty sure I will be able to fix it.

    Bgarciaz

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    June 15, 2016

    Quality at a reasonable price

    I had a local shop install the headers which did take longer than anticipated. Considering the cost and the gain in performance these are a must have. My 2015 GT put down 427hp and 408tq to the tire with a combo of cold air intake, headers and catback exhaust, all of this on 91 pump gas and cutom tune.

    Karn

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    June 07, 2017

    creates great power, sound is so great.

    if you know your way around the garage you can put these on, fit is great and looks great under the hood. everything went together really well. Stainless Works - works!! they created a great kit.

    KevinG

    Year: 2015 Submodel: GT

    Helpful (0)

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