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

AmericanMuscle no longer carries the Pypes 1-7/8 in. Long Tube Off-Road Headers - Performance Connect (15-17 GT). Please check out 2015-2019 Mustang Long Tube Headers for an updated selection.
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Features, Video & Details

  • Improves Rear Wheel Horsepower and Torque
  • Increases of over 50HP with a tune
  • Long Tube Header Design
  • 3" Off-Road Connection Pipes
  • Free Flowing Mandrel-Bent Tubing
  • 304 Polished Stainless Steel Construction
  • 1-3/4" to 1-7/8" Step Header with 3" Collector
  • Intended for Off-Road Track Use
  • Requires 3" Aftermarket Cat-Back
  • Fits Left Hand Drive Models Only
  • Fits 2015-2017 GT Mustangs

Review & Installation Video

Review & Install Video

Hey, everybody. I'm Justin with, and this is gonna be my detailed breakdown of the Pypes Off-Road Long Tube Headers featuring the 1 and 7/8th-inch primaries along with their 3-inch connection pipe. And it is available for your 2015 and newer Mustang GT. Now, in this overview, I plan on talking about some of the benefits of installing a long tube header like this onto your S550 GT. We'll talk about what you can expect from a material and a construction standpoint, where these guys will land on the price range, and then finally, a brief little overview of the installation. This is gonna be a full-pull three out of three wrenches on the difficulty scale for me because, honestly, long tube headers are going to be a tough job, and that certainly isn't gonna change here with the S550.So, the Pypes long tube headers that we have in this video should appeal to Coyote owners out there for a couple of different reasons. Now, first and foremost, these guys will feature the 1 and 7/8th-inch primary, making them a good choice for naturally aspirated applications, but an even better choice for forced-induction applications. Essentially, it's a best of both world type of diameter, something that will work for your bolt-ons but will really shine once you add in those big modifications. Secondly, this is important to point out because these long tubes will only work with a three-inch style connection catback, meaning your factory catback or an aftermarket catback with that neck down will not work with these particular long tubes, as they do feature that three-inch connection pipe. Last but most certainly not least, these guys should appeal to the S550 GT owners out there looking to grab a quality stainless steel header, 304 grade to be exact, but want to spend the least amount of money in the process.And sticking with that topic here guys, the Pypes brand as a whole typically will be a budget or value brand overall, but that doesn't necessarily mean your products are going to suffer. I've noticed that to be true especially with their newer S550 offerings. Their X and H box catbacks are really nice, 304-grade stainless steel. They are very affordable, and the same can be said with their long tube headers here. Better materials, better fitment, better welds, all things I've noticed with their newer generation products here. And at the same time, they are still super-affordable. In fact, you're looking at right around $900 bucks for these guys, again making them the most affordable full 304 stainless header on the site, and only slightly more expensive than the BBK options, which do utilize a mild steel.I do want to stick with the materials a little bit longer here because, again, you are looking at 304-grade stainless steel throughout. The benchmark material in the land of after-market exhaust systems and of course the stainless steel header systems that we're dealing with here today. You are getting some pretty solid welds, definitely better than some of the other products I've seen in the past. But at the same time, are you seeing the level of build or weld that you would with an American Racing, or a Cooks, for instance? Well, not exactly. But keep in mind guys, you are spending close to two G's for those products I just mentioned. You're only spending about $900 bucks here for the Pypes version, so eventually, something has to give. But again, that being said, these guys still will perform as advertised for that $900 price point.But moving away from the materials a little bit, I do want to talk about the design of the Pypes long tube header. Yes, this is technically classified as a 1 and 7/8ths inch header. But it's a little unique in that fact, as you are going to see a step design. And what does that mean? Well, the header is going to step up in size a little bit up until that three-inch collector. So, you're actually looking at a 1 and 3/4 inch diameter for the primary here for essentially about six to seven inches before it does step into the 1 and 7/8ths inch diameter, making up probably 75% to 80% of the header itself. And again, everything will end at that three-inch collector.Now, there is some functionality behind that step design. It's something that people have been doing for a long time in the world of hot-rodding with the goal of increasing your exhaust velocity as it moves through the system increasing your performance in the process. So, going back to what I said earlier about this header working for both the NA cars in addition to the forced induction applications, well this is why. Because you are seeing that smaller primary diameter here with the initial part of the header, that 1 and 3/4 inch diameter, which I think is ideal in the NA world before it does step into that larger primary. And again, that's where it's really going to shine for your forced induction applications. Very unique here with the Pypes header, and something I did want to point out.Now, all of these primaries have the CNC mandrel bend just for better flow, of course. You're not going to find any crushed bends or anything like that with these particular headers. They are finished off in this nicely brightly polished finish that you see here, which is a shame because these things do look really good on the table. You're not really going to see them once they're installed, unfortunately with the exception of a little bit by the flange here poking out through the engine bay.Also, something to look forward to here with the Pypes Long Tube Headers, they do have what they call their power-spike loaded into the actual collector here to help increase exhaust scavenging in addition to helping increase the exhaust velocity. As you remember, we talked about that a little bit earlier with the step design. Honestly, guys, this is something a lot of header manufacturers have been doing as of late with their Coyote long tubes, and it's something you can look forward to here with the Pypes option.Another important thing to point out here with the Pypes long tubes that we have in this video is that they are their off-road variety. Meaning you're not going o find any high-flow cats or anything like that. With these particular long tubes, they will deliver the biggest power and sound gains, but just be mindful of your local laws before pulling the trigger. Now, if you did want to find a Pypes long tube with a high-flow cat, we do sell a set here on the site. It is going to be a little bit more money with those included cats, but it is something to be aware of.Now, I do want to focus in on these three-inch connection pipes a little bit more here with the Pypes system because they are pretty unique to this system and will help you eliminate any neck-downs in your exhaust system. This is important to point out because using these guys will not work with a factory-style catback connection. You know what I'm talking about, right? The little neck-down that you're going to see with the factory catback, or maybe an aftermarket catback that utilizes that factory-style connection. These are just simply not going to work. Now, if you do have an after-market catback that does feature that neck-down, you spend a lot of money on it, and you really don't want to part with it, Pypes does offer a long tubes set up here on the site that will have the proper connection for what you need. Be sure to check that out here at AM if you wanted to do so.But of course we can't forget about the biggest reason people are interested in installing long tubes in the first place, and that is power gains or expectations when upgrading. And listen, guys, I'm gonna be brutally honest with you here. It's hard to put an exact number on what you can expect with your 2015 and newer Mustang because cars are different, dinos are different, mods are different, tunes are different. You get where I'm going with this. But with all that being said, it's not uncommon to see gains upwards of 10 to 20, even more, wheel horse-power when adding a long tube like this with a quality tune factored in. Forced-induction applications might even see a little bit more.Sticking with that tune, talk just a little bit further here, guys. Yes, these are an off-road long tube, meaning you will need to address for that in your custom tune. Otherwise, you're gonna see a "check engine light" pop up once the car's ECU realizes there's no longer any cats there. Listen, whenever you're doing a modification of this magnitude, it just makes sense to have your car tuned anyway because it's only going to maximize the potential of the mod itself. And if you already have a custom tune in place from some of the bigger name tuners out there, chances are they offer you a free revision with a new modification. Otherwise, they might charge you a small fee, but take my advice guys, it's definitely worth it. Switching gears, let's briefly cover the installation here. As you might imagine guys, this one will not be fun. Expect a full three out of three wrenches on the difficulty meter and at least a full day in the shop or garage, maybe more, depending on your level of expertise. As far as tools are concerned, well, you're going to need a bunch, right? A number of sockets, extensions, swivels, wrenches, the whole nine yards and of course, a lift will definitely make this install a lot easier. If you have to do it on your back on jack stands, well, God help ya.Now, I will say that if you've done a long tube install on a S197, you can look forward to a slightly easier day in the garage here with the S550 GT because, in our experience, there's just a little bit more room to maneuver. But either way, you will find two schools of thought on the actual installation process. I think most guys would prefer to support the engine or trans with a pull-jack or something similar, remove the mounts one at a time and tackle the job that way. On the other hand, you will find guys that prefer to just drop the entire front subframe and do the install that way. So, again, you have a couple of options here, but at the end of the day, if you don't really feel comfortable with tackling this job, don't be afraid to call your local shop. I'm sure they would really appreciate the business.Wrapping things up guys, I'm a big fan of the Pypes long tubes headers for the S550 GT, first and foremost because they're super affordable in the land of big-money brands. They're still going to give you that 304-grade stainless. The welds are still pretty decent, overall. And most importantly, they're gonna perform pretty much as good as any other long tube in the category for a fraction of the price. Just keep in mind, you have to use these with a three-inch connection for your catback. Guys, that's going to wrap it up. I'm out of here, but thanks for watching. And for all things Mustang, keep it right here at

Improves Horsepower and Torque. Make everybody eat your dust by installing a set of Pypes Long Tube Headers on your Coyote powered GT Mustang. Engineered to improve the exhaust flow of your 5.0L Mustang, these Pypes Off-Road Headers will increase rear wheel horsepower and torque. Increases of 50 RWHP has been seen with a custom tune. Pypes 1-7/8" Long Tube Off-Road Headers are ideal for use on naturally aspirated 5.0L Mustangs, but really come to life 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" primary tubes that step up to 1-7/8" and then merge at a 3" 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 intended to be installed with an aftermarket 3" catback exhaust system.

Please Note. Oxygen Sensor Extensions are required for installation. Sold Separately.

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


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
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Type Mid Pipe Required: 3" 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?

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Questions & Answers (12)

5 Top Rated Questions

Currently running flowmaster outlaw catback exhaust system.. will these fit ? Do I need to buy anything extra or will I be able to weld them on ?

  • The Pypes Long Tube Off-Road Headers are compatible with the Flowmaster Outlaw Cat-Back Exhaust and should have no fitment issues. A tune and O2 sensor extensions would be required. We recommend using clamps to install instead of welding, to ease service of parts such as the trans and the clutch.

Helpful (1)

Does this eliminate the factory midpipe and therefore pair right up directly to a 3 inch “cat”back system without the need of an aftermarket Catless x/h?

  • The Pypes 1-7/8 in. Long Tube Off-Road Headers will connect to the factory mid pipe, or the mid pipe contained in an aftermarket cat back that includes a resonator delete mid pipe. 

Helpful (0)

Hi have a question what is the difference between the performance connect headers and the factory connect headers because I don’t know which would go better with my mustang gt 15

  • The pypesheaders with the factory connects are designed to work with the factory 2.5" exhaust system while the Pypes Performance connects will work with 3" aftermarket exhausts. 

Helpful (0)

Will these work with an AWE track catback exhaust system?

  • These Headers with connection pipes are intended to be installed with an aftermarket 3" cat-back exhaust system. The AWE cat-back will step up to a 3" exhaust but will 2.5" where it connects to the headers.

Helpful (0)

Would these headers fit with the Ford performance x pipe without any issues?

  • The Ford Performance Cut and Clamp Resonator Delete X-Pipe is cut and clamp so it will work inline with these. If you have any other questions about your exhaust setup please feel free to call or chat in.

Helpful (0)
Post Your Question
7 More Questions
Can you please tell me if headers for $994.00 as a kit, if they are in stock? Thanks for your time. 1 answer
I have a 2015 mustang gt with Corsa cat back extreme. Will these headers connect without issue? I have 3in midpipes and my helix xpipe is 3in also. 1 answer
I have a Ford performance x pipe and roush axle backs on my mustang. Will these fit? 1 answer
Well these fit with magnaflow competition cat back 1 answer
I have the MBRP Race catback. In order to mate to the H-pipe do i get the 3" Pypes headers or the 2.5" Pypes headers? Thanks! 1 answer
Can these headers be ran without a tune? 1 answer
Do you need an O2 extension kit with this? 1 answer

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Customer Reviews (8) Write a Review

Overall Rating 4.4

out of 5 stars

Installation Time:Weekend

Installation Cost:$500-$1000

  • Loudness / Volume 4.75 4.8
  • Exhaust Note 4.75 4.8
  • Fit & Finish 4.125 4.1
  • Bang For Your Buck 4.75 4.8

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    July 14, 2018

    What can you say? They're long tubes

    Nothing beats the sound of a V8 with long tubes. They're good quality and built to last. Don't bother with the expensive ones, these are just as good. If you're staying catless, warning that you will be LOUD. At least 3x louder than you are now. Invest in some Borlas. Had these on for six months and they're already getting some nice discoloration on them. Do yourself a favor and get these installed at a shop, though. These S550s are a pain to put LTs on, and practically impossible without a lift.


    Year: 2015 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Weekend

    February 28, 2018


    Perfect for this price. Made the s550 sound a lot better with that aggressive tone. Throttle response a lot better


    Year: 2015 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Full Day

    December 12, 2017


    Cannot go wrong with these at all. Really quality stuff for the price. These, pared with X pipe and roush axleback back sounds amazing and the power gains are really worth the money. High recommend.


    Year: 2017 Submodel: GT

    Helpful (5)

  • 1/5

    November 28, 2017

    Terrible do not buy

    Fit was so bad they were not able to be installed, had to return and use a different companies product.


    Year: 2017 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Full Day

    August 29, 2017

    a great catcback

    it did give HP and i hot a Great exhaust tone . i highly recommend it


    Year: 2015 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    August 28, 2017

    TOO Loud at times but GREAT

    I paired this with a borla atak catback and it sounds so good and very loud. The only thing I don't like is how uncontrollably loud the cold start is. It's cool and what not but when I leave for work in the morning and my car is screaming for a minute at 6:00 AM, I feel terrible. Don't get me wrong though, I LOVE these headers. Another problem though is that I had to get BAMA to send me like 4 different tunes because every time it was not right. The shop that installed it said that that is normal but it is still annoying.


    Year: 2015 Submodel: GT

    Helpful (5)

  • 4/5

    Installation Time: Afternoon

    June 18, 2017

    2017 long tube headers

    The headers are high quality. With that said. The bolts they send in the kit absolutely DO NOT FIT. USELESS. Big improvement in power with a tune.


    Year: 2017 Submodel: GT

    Helpful (4)

  • 5/5

    Installation Time: Full Day

    May 24, 2016

    Power house

    The sounds from these headers are just simply magnificent, paired with the bama tuner the power gains are highly impressive.


    Year: 2015 Submodel: GT

    Helpful (5)

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