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

Market Price $1,017.99 You Save 12% ($118.00)
Our Price

$899.99 (pair)

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  • Item 389192
  • MPN# HDR78SK-2

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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 (Steps Down to 2.5")
  • 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
  • Fits Left Hand Drive Models Only
  • Fits 2015-2017 GT Mustangs

Review & Installation Video

Review & Install Video

Hey, what's up, everybody? I'm Justin with americanmuscle.com, and welcome to my detailed overview of the Pypes Off-Road Long Tube Headers with the 1-7/8-inch primaries, available for your 2015 and newer Mustang GT. All right, this detailed overview's gonna cover my thoughts on the benefits of installing a set of long tube headers, what you're gonna be looking at here with the Pypes system as far as quality and construction, we'll talk price, and then, finally, we'll talk installation. And long tube headers on the Coyote platform, you're looking a full-pull three out of three wrenches on the difficulty scale with some more detail later in the video. So the Pypes Long Tube Headers that we have in this video should appeal to the S550 Coyote owners out there looking to step into one of the more involved bolt-ons, of course, like a long tube header, and would prefer to get the best of both worlds, a nice, quality build but with a very affordable price tag. As for that diameter, well, the 1-7/8-inch primary is gonna be one of the most common in the category, and, in my opinion, I call it the jack-of-all-trades diameter. Definitely enough header, of course, for the naturally-aspirated setups, but enough header to grow into if and when forced induction enters the equation. So I'm sure a lot of my Mustang fans out there are probably more than familiar with the brand Pypes, know them best as an entry or value-level exhaust option in the category. But that doesn't necessarily mean their products are gonna suffer because of that, and never has that been more true with their S550 offerings. I've personally noticed a large increase in quality recently here with their S550 offerings, both the cat-backs and the long tube headers that we have in this particular video. Better materials, better welds, better quality are all things that I'm seeing throughout the brand, and it is a nice thing to point out for all my S550 owners. Well, let's a little bit more about the materials here with the Pypes system because, again, they are very nice for a company that's not usually known for that sort of thing. Premium grade 304 stainless steel throughout here, really nice weld, guys. Listen, I've seen some Pypes stuff in the past that I'd be like, "Eh," but that's not the case here with these particular long tube headers. Now, are you getting the same level of quality and construction that you would see with some of the premium options? Not exactly. For instance, some other premium headers might smooth out the welds inside the flange here a little bit more. Pypes doesn't do that, but what I can tell you, these things are gonna perform as intended for far south of $2,000 that you might spend on a set of Kooks or American Racing headers. Technically, yes, this is a 1-7/8-inch header, but it's a little unique in the fact that it features what is called a "step design." And this basically means that the header steps up in size the closer it gets to the collector. Now, it's a single step, mind you, but it is a step design, nonetheless. So let's talk about that a little bit more. You're starting out with a 1-3/4-inch primary for basically the first 6 to 8 inches of the header before stepping into that larger 1-7/8-inch diameter, and then, of course, everything exits or meets at the rather large 3-inch merge-style collector. Now, stepped headers are something that's been around for a long time in the world of hot-rodding and racing just with the goal of increasing your exhaust velocity, helping to create a broader power band overall. Now, this is something that I think will be attractive to a lot of owners out there, but mainly the guys that are looking to stay NA for now, basically for budget reasons, before maybe stepping into forced induction with a TVS, twin-screw, or a centrifugal. Because, in my opinion, a 1-3/4-inch header is really all you'll ever need for a naturally-aspirated setup, which you're kind of getting in this step design, but then, again, you've got that 1-7/8-inch diameter to grow into if you do go forced induction. Speaking of the primaries, they've all been CNC mandrel-bent to help increase your flow overall, and while not terribly important, the headers themselves have been polished lightly just to give you a little bit better appearance. But between you and I, you're really never gonna see these things once installed. Now, moving to that merge collector once again, a 3-inch collector featuring what Pypes calls their power spike technology. This is something a lot of header manufacturers have been doing lately with the Coyote applications, and it's just another thing to help increase exhaust velocity along with that step design we just talked about. Of course, this is Pypes' Off-Road Long Tube setup, meaning you're not gonna have any cats anywhere within the system here. It will, of course, offer you the biggest gains, but just make sure to check with your local laws before purchasing. Now, if you did like these long tube headers, but maybe you wanted to go with a catted version instead, we do sell one here on the site for about 100 bucks more. Another thing to point out with these particular long tube headers, the off-road version, is that they're gonna make your exhaust a lot louder. So just be ready for that, especially if you already have an aggressive cat-back in place. Of course, Xtreme, Flowmaster Outlaw, I'm looking at you. You are gonna just annihilate the neighborhood with long tube and one of those systems. Again, not a bad thing for some people out there, but certainly something you should be aware of. And then there's the biggest reason we all install long tube headers in the first place, of course, and that is the power gains that you get when installing something like this. Now, it's hard to put an exact number on a car without dyno-ing it because dynos, cars, mods, tunes, they're all gonna be different. But what you can expect is anywhere between 10 and 20 wheel horsepower with a quality tune, maybe a little bit more if you already have some supporting mods in place. Now, on the site, we do say you can install these Off-Road Long Tube Headers from Pypes without a tune, but I personally would recommend against that for two big reasons. First and foremost, you're just gonna see more power with a custom tune. Secondly, you're never really gonna see Check Engine light pop up here if you run these headers without a tune because the car's ECU's gonna start freaking out once it realizes the cats are no longer there. So take my advice. Get a tune. You're gonna be happier in the long run. And if you already have a custom tune in place from some of the big-name tuners out there, a lot of times, these guys are gonna offer you a free tune revision. So do yourself a favor, do your car a favor, and get yourself tuned. Well, what does this all mean when it comes time to talk price? I keep telling you these things are affordable, and, guys, I'm not lying to you. In fact, you're gonna be looking at right around 900 bucks for the price point for the Pypes Long Tube Headers, the Off-Road option, which, in my opinion, is very, very affordable. In fact, only the BBK options are gonna be slightly more affordable, but not by much. Now, for the install, and I can tell you this one certainly isn't gonna be fun, guys. Expect a full three out of three wrenches on the difficulty scale, a full day to maybe even a weekend in the shop or garage, depending on your level of expertise. This one is certainly gonna test your toolbox, guys, so just be ready for that. Have a solid set on hand before getting started, and I'm talking all the fixings here, ratcheting wrenches, sockets, extensions, swivels, the whole nine yards. Just be prepped for a big install. Now, typically, there are two schools of thought when tackling this install. Some guys, like myself, prefer to support the motor and transmission with a pole jack, remove the motor mounts, and install the headers that way. Other guys like to drop the entire front subframe and do the install that way. Whatever the case, guys, just know you're in for a pretty gnarly install here, and if you're not comfortable with this one, don't be afraid to call your local shop. Personally, I'm a big fan of the Pypes Off-Road Long Tube Headers for the simple fact that they're very affordable in the land of big-money brands, the quality and welds are all on point, and the best part is they're gonna perform just as well as anything else in the category. So that is my review of the Pypes Off-Road Long Tube Headers, which you can find right here at americanmuscle.com.

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" 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" 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 a direct bolt on to the stock 2.5" 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

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: 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?
  • GT - 15, 16, 17

These Headers are intended for left hand drive applications only.

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Most Helpful Reviews

5/5
Great product

Did the install myself in garage on jack stands,,wasnt as bad as i thought,,my knuckles might think otherwise,,lol ,went without any problems,,could have done it faster but ,,,,, ,,working on another project ...

Read More
Helpful (1)

5/5
Totally worth the money!!

The install took me about 8 hours, doing it by myself on jack stands. The passenger side is by far the hardest to install. It was totally worth it the second I started up the car. I have the MBRP race ...

Read More
Helpful (1)

Overall Rating 4.5 out of 5 stars
Read All 8 Reviews

Customer Photos

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14 Questions / 6 Answers

Ask a Question

Will this connect straight into a 3" mbrp street cat back

JuanG

  • These are designed to bolt up to a 2.5 inch piping. Modification would be needed to fit this up to a 3 inch exhaust.

    JeffAM

Helpful (1)

Do you have to remove anything to install these headers engine mounts drive shaft etc.

AnnaF

  • For the installation of the Pypes 1-7/8 in. Long Tube Off-Road Headers, you will need to unbolt your motor mounts and move the motor up. This will provide you with the clearance that is needed for the installation.

Helpful (0)

Will these headers bolt right on to my 3” Corsa Extreme Catback?

Gil

  • These Pypes 1-7/8 in. Long Tube Off-Road Headers utilize a 2.5" step down adapter, so as long as the catback also includes a step down to 2.5" to the adapter, then they will fit. The Corsa Xtreme 3 in. Cat-Back Exhaust, item 390910/390911, will be a direct fit for Premium GT's when using the Roush Rear Valance, item 389792/ 387054. https://www.americanmuscle.com/corsa-xtreme-catback-polished-quad-tips-1516gt.html https://www.americanmuscle.com/corsa-xtreme-catback-black-quad-tips-1516gt.html https://www.americanmuscle.com/roush-rear-valance-2015.html https://www.americanmuscle.com/roush-rear-valance-noholes-1516.html

    AMJEFF

Helpful (0)

Any ground clearance issues with a lowered stang?

LiveReckless010

  • The Pypes Long Tube Off-Road Headers do sit lower than short headers, and if your Mustang is lower you will experience some ground clearance issues.

    AMJEFF

Helpful (0)

I have a mishimoto axleback, and a sve xpipe that's 2.5 inches. I still have the cats on, will these headers bolt right up to the x pipe?

AlexG

  • As long as the SVE x-pipe has the same connection location as the stock exhaust system, the Pypes 1-7/8 in. Long Tube Off-Road Headers should bolt up with the Connection Pipes that step down to 2.5" but we have not test fitted these with the SVE x-pipe so we would be unable to confirm fitment.

    TerriB

Helpful (0)

Would these long tube headers bolt right up to the corsa extreme cat back?

Taylor

  • As long as your Corsa cat-back has a 2.5" tubing where it meets these headers it will fit no problem!

    Ricky36

Helpful (0)

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Customer Reviews (8) Write a Review

Overall Rating 4.5

out of 5 stars

Installation Time:Full Day

Installation Cost:$250-$500

  • Loudness / Volume 4.571429 4.6
  • Exhaust Note 5 5
  • Fit & Finish 4.857143 4.9
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Full Day

    January 21, 2017

    Great product

    Did the install myself in garage on jack stands,,wasnt as bad as i thought,,my knuckles might think otherwise,,lol ,went without any problems,,could have done it faster but ,,,,, ,,working on another project for wife,installed cold air and tune,,woke car up ,,mo doubt

    AVELL

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    September 11, 2016

    Totally worth the money!!

    The install took me about 8 hours, doing it by myself on jack stands. The passenger side is by far the hardest to install. It was totally worth it the second I started up the car. I have the MBRP race catback, and the sound that both products make together is intoxicating. Definitely noticed a good gain in power!! Now I have to watch how aggressive I am with shifting, because she will get squirrely in 3rd!

    FastBlack99Cobra

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    April 27, 2016

    Good quality

    Not going to lie, install is not fun! took me and a friend about 14 hours total. we are both mechanically inclined its just little to no room to work with. other than that they are awesome! love the sound and love the power!

    philly

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    April 06, 2016

    Ground shaking

    These headers are super amazing, really opens up the car to another level.

    Dane

    Year: 2015 Submodel: GT

    Helpful (1)

  • 1/5

    Installation Time: Weekend

    September 10, 2017

    Pypes Headers

    These Pypes Long Tube Off-Road Headers are awesome! They have a great look and a great sound. I was impressed with the workmanship, fit and quality of materals. You really get your moneys worth when you purchase Pypes Headers!

    Beachbum

    Year: 2017 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Full Day

    September 05, 2017

    Vroom vroom

    Totally happy with end results.. have them paired with MBRP race exhaust and a custom tune for local tune shop. My neighbors hate me cause my car is loud!!

    TinoJ

    Year: 2015 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Full Day

    August 29, 2017

    Extremely pleased

    I'm more than happy with this set of headers They sound amazing with the mbrp race cat back Sounds loud but not raspy at all. I also gained a lot of power and the best thing is that they have a lot of clearance and u don't have to worry about false knock

    AlbertoB

    Year: 2015 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    April 16, 2017

    Perfect fit

    These tubes fit perfect with no rubbing issues. It is night and day. The car scares people to my satisfaction lol. A must have paired with a bama tune and c and l racer intake.

    Red

    Year: 2017 Submodel: GT

    Helpful (0)

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