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Stainless Power 1-7/8 in. Long Tube Catted Headers (15-19 GT)

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  • Item 390796-A

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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 2015-2019 GT Mustangs with Factory 2.5" Exhaust

    Review & Installation Video

    Review & Install Video

    Hey guys, Stephanie with americanmuscle.com, here with a review of the Stainless Power Long Tube Catted Headers available for 2015 and up S550 GT Mustangs. In this video, we're going to be looking at a few different things in regards to these headers. We're going to talk about the materials and construction of the headers themselves and the install, too. I'll talk more about this later on, but I can tell you right now that long tube headers make for a difficult install, so I'm going to call this one a three out of three wrenches on the difficulty meter. The Stainless Power Catted Long Tube Headers are going to be a good option for someone looking for a natural finish stainless steel long tube that's going to maintain the use of cats and maintain three-inch connection pipes, but that'll step down to two-and-a-half inches for a cat-back. The connection pipes that come with these headers are three-inch catted pipes that have a step down which means that you'll need a two-and-a-half inch cat-back. Long tube headers are going to offer both performance and sound gains, but the end result of your headers will depend on the rest of your setup. The runners on these particular headers are one-and-seven-eighths inch which is slightly different than the one-and-three-quarter inch offering. Traditionally you see forced induction cars running larger runners and NA cars running smaller runners, but I wouldn't really say that that's a hard and fast rule especially with the new Coyotes. So you don't have to have a power adder to run a one-and-seven-eighths inch diameter. You just need to keep in mind your current mods and the goals you have for your car when you're looking around as well as what going with this size runner will do to your power band with the mods that you have. If you have some bolt-ons and you're still NA, you might see a hit on your low-end torque. Once you spin the Coyote motor up the larger diameter is going to help keep things moving, so what you're going to see are top end gains. Getting into specifics here, these are a 304 stainless steel header that has a natural or raw finish which is going to be different than a chrome or ceramic coated header. It obviously doesn't have the polished appearance that a chrome header would have. While these do not have a ceramic coating either, they are made from that 304 stainless steel tubing, so you won't have to worry about corrosion. This is mandrel bent tubing which is going to help with smoother air delivery. The header flanges here are also laser cut, and they do that to prevent leaks and create a good fit. The primary tubes then merge down to a three-inch collector with Venturi style merge spikes that are going to optimize exhaust flow. Then, you have your connection pipes here. Like I said earlier they're three-inch and they are catted, and they're going to step down to two-and-a-half inches. That means you can bolt up your factory cat-back or an aftermarket two-and-a-half inch one, so you have some flexibility there.If we move on to price, as we all pretty much know, or you'd know if you've been shopping for long tubes, that they're pretty much going to be a solid investment. They're pricy, and they're difficult to install. This option from Stainless Power since they are a higher quality item made from great materials are going to be on the more expensive side. Not to mention the one and seven-eighths inch option that we have here is going to be slightly more expensive, which isn't unusual to see when you compare it to a smaller runner. You do tend to see that the larger runners cost more than the smaller runners, but not usually by very much at all. You're looking at spending just over $1100 for a set of these right here, but you do have to keep in mind all the benefits and power that you'll be getting from this setup. And to put things in perspective, it's not just these headers are going to be expensive. You're going to be looking at headers costing very close to or over $1000 anyway no matter what brand you go with. As for the install on this one, long tubes are always going to be a difficult install. I don't say this often but if you don't have a helping hand or you don't have much experience it might be better to just take the car to a shop for the install. If you do tackle this yourself, it's going to be a full three out of three wrenches on the scale and a day in the garage. You're going to need your toolbox for this one with an assortment of different sockets, wrenches, and extensions. You're looking at things like disconnecting the steering shaft, dropping the starter and removing a motor mount. A lot of this install obviously requires working in some pretty tight areas, so while everything is straightforward, getting access and maneuverability in these areas is actually tricky which is why you need to pull a motor mount on one side so you can raise the motor slightly with a jack to give you some more room. Having a helping hand, in this case, is really going to benefit you. But a day of wrestling and some pretty pennies spent on these mods is totally worth it in my opinion.Wrapping things up with the Stainless Power Long Tube Catted Headers, these are 304 stainless steel headers with one-and-seven-eighths inch runners and three-inch collectors that run down to three-inch connection pipes that'll step down to two-and-a-half inches. As usual, you can check them out more online for yourself right here at americanmuscle.com.

    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 2019 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 2018 2019 Details

    MPN# SM15HCAT

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    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?
    • Bullitt - 19
    • GT - 15, 16, 17, 18, 19

    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.

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        Questions & Answers (25)

        5 Top Rated Questions

        Does this kit come with header bolts? Or reusing the factory bolts?

        • The Stainless Power 1-7/8 in. Long Tube Catted Headers will re-use your existing header bolts from your factory headers. This will not include an additional set of header bolts.

        Helpful (1)

        will these header work with a amrytrix exhaust

        • Unfortunately because we do not offer their products we cannot confirm fitment with them.

        Helpful (0)

        I have the Awe tract cat back installed. Do I keep my h pipe ?and would I need to buy anything else besides theses headers for the install. Like a adaptor or extensions

        Would this fit with the Ford performance by borla catback with the x pipe?

        Does anyone know if these are compatible with the Lund ghost cam tune? I know the tune stipulates the catalytic converter must be removed, but will it work with the high-flow cats on these headers, or do the cats have to be COMPLETELY removed? Thanks

        • From my understanding, the cats will need to be completely removed.

        Helpful (0)
        Post Your Question
        10 More Questions
        Do I need a custom tune when installing the catted headers in my 2016 mustang gt? 1 answer
        Would you say this makes a loud raspy sound or a deep muscle car grumble? 1 answer
        Will this fit my 2019 with the 3in Active Corsa Xtreme with the with the 2.5in front Adapter? 1 answer
        Would these headers fit the Corsa sports Catback on my 2016 Mustang GT? 1 answer
        I have 2015 Gt with the 3 inch borla atak will it fit? If not is there are a away to make it fit perfectly? 1 answer
        I have a 2015 GT Roush with a Roush xpipe and Roush exhaust . Will this fit my current set up ? 1 answer
        I have the Gibson catback exhaust, are these headers compatible with it? 1 answer
        Will this fit 2016 GT with Borla Quad-Tip Catback exhaust by Ford Performance? Any other needed parts for install? 1 answer
        Will these headers fit my 2018 Mustang GT W/ X-pipe and factory Active exhaust? 1 answer
        Will these headers fit the AWE Touring cat-back system since it also reduces to 2.5" to mate with factory cats. Also would there need to be a shorter mid pipe if connecting to AWE system? 1 answer

          Customer Reviews (13) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Weekend

          Installation Cost:$250-$500

          • Loudness / Volume 4.538462 4.5
          • Exhaust Note 4.846154 4.8
          • Fit & Finish 4.615385 4.6
          • Bang For Your Buck 4.846154 4.8



          • 5/5

            Installation Time: Full Day

            December 09, 2018

            Sounds nasty

            These are great if you want to mix and match your cat back with a different brand of headers. Install was what you would expect with headers. They will test your patience but if you have a lick of experience and acess to a lift it's definitely doable in a day. I split mine between two days just so I could relax a bit on my weekend. Over all sounds great and with a tune from vmp the car rips. Definitely recommend

            RennyP

            Year: 2016 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Weekend

            December 08, 2018

            Fantastic

            Not gunna lie it took some work to get these installed. I did it in the garage on jack stands. Take your time and don’t rush took me a full weekend. Product fits absolutely perfect.

            AnnP

            Year: 2018 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $250-$500

            September 02, 2018

            Great mod

            If you’re looking for an aggressive sound. Well this is it. Pair them up with the Corsa Sport Catback and it sounds amazing. You do feel a slight lost of power at the low end but it feels more responsive at the higher rpms. Cold starts are a work of art. It’s like waking up the a beast every morning. Your neighbors might start hating you. Lol

            AlfonsoS

            Year: 2016 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            August 14, 2018

            Great headers for the money

            These headers paired with my Magnaflow Street Series cat back sound amazing. I usually work on my own cars but, when it came to installing the headers, I brought them to my local performance shop and had them installed professionally along with a custom dyno tune. The headers look great installed and fit perfectly. With only headers, 3" catback and cold air intake, my 17 PP GT put down 425hp/390tq to the wheels!

            ShawnV

            Year: 2017 Submodel: GT

            Helpful (8)

          • 5/5

            July 25, 2018

            Awsome Power Gain

            I purchased the headers and had them installed recently. The installer said it was a relatively easy install. Looking from under the hood down, the bay is full and also full of power gain. I was amazed at the amount of noticeable power. I have to say it was money well spent.

            15Mustangcrazy

            Year: 2015 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Full Day

            June 21, 2018

            Perfect.

            Fitment was perfect. No issues on the install. Sounds amazing. Definitely a must have.

            Christopher

            Year: 2016 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Shop Install

            April 26, 2018

            Good value and bang for the buck.

            Stainless Works did the design and materials and the cost is less. Look to be of really good quality I will be installing soon.

            DavidN

            Year: 2016 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Weekend

            March 19, 2018

            Stainless Power

            I think these headers are a good bang for the buck.. sounds amazing, I was going to get the Kooks, however I am very happy with these.

            Ravi

            Year: 2015 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Full Day

            March 04, 2018

            loud as can be

            I absolutly love this product! I have these headers paired with bola attak 3'' exhaust and man does it scream! these headers made the difference in sound. if you want everybody and there mother to hear you, these are what you need. my neihbors now hate me but its worth it for these headers. only down side is I did notice a slight loss in low end tq

            ColbyW

            Year: 2017 Submodel: GT

            Helpful (8)

          • 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 (6)

          • 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 (8)

          • 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 (7)

          • 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 (9)