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Pypes Off-Road H-Pipe (11-14 GT)

28 Reviews
Our Price

$308.99

(each)
  • Item #100794
  • MPN# HFM24

  • Market Price $339.99
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Product Videos Customer Photos
Features
  • Improves Exhaust Flow and Sound
  • Classic Muscle Car Rumble
  • 304 Stainless Steel Construction
  • 3" Mandrel Bent Tubing
  • For Off-Road, Track Use
  • Fits 2011 to 2014 GT Mustangs
Description
Improves Exhaust Flow. Add even more horsepower and torque to your Coyote powered Mustang by eliminating those power robbing factory catalytic converters with a brand new Pypes Off-Road H-Pipe. The Pypes off-road H-pipe will significantly improve your Mustang's exhaust flow for a notable increase in horsepower and torque.

Muscle Car Rumble. This free flowing Pypes H-Pipe for the 2011-2014 GT Mustang's not only increases power, but it also adds a deep muscle car rumble to the sound of your exhaust with its classic "H" crossover pipe design.

Quality Construction. Pypes constructs their mid-pipes from 3" diameter free-flowing mandrel bent 16 gauge 304 stainless steel tubing, that features a classic H crossover to increase exhaust flow for a significant improvement in power and sound.

Application. This Pypes Off-Road H-Pipe is designed to be a direct bolt-on for the 2011-2014 5.0L V8 GT Mustangs with either aftermarket shorty headers or the factory manifolds installed. Intended for off-road track use only.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Off-road H-Pipe
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "H" Type Headers Required: Shorty or Stock Manifolds
Piping Material: 304 Stainless Steel Piping Size: 3"
Catalytic Converter: "No" - For off-road use only Fitment: 2011-2014 GT Mustangs
Will it fit my Mustang?
  • GT - 11, 12, 13, 14

Most Helpful Reviews

5/5

Top 250 Contributor

Perfect

Sounds just like I hoped it would. Got this and Pypes Pype Bombs together. You will definitely KNOW when I head down your street. Couldn't decide between X or H and am glad I went with H pipe

Helpful (4)

5/5
This in an awesome offroad H...

First, i was a bit leery about purchasing this without more feedback. However, the first set of cat backs I had were Pypes, and they were good quality, so I rolled the dice. Installed these without help ...

Read More
Helpful (2)

Read All 28 Reviews
Overall Rating 4.6 out of 5 stars

Video

Customer Photos (5) View All Photos

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11 Questions / 5 Answers

Ask a Question

Catalytic converter Can the H-Pipe be installed using the stock catalytic converters??

ElCaballitoNegro Year: 2014 Model: GT

  • yes

    Best Answer

    tiggergat9 Year: 2008 Model: GT Top 1000 Contributor

    Good Answer (1) (0)

Show 2 more answers Question Resolved

Will the "Check Engine" light come on if i keep the stock catalytic converters on?

foundrj Year: 2014 Model: GT

  • shouldn't if you install the sensors back in place, or install eliminators.

    tiggergat9 Year: 2008 Model: GT Top 1000 Contributor

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Would this H-Pipe work with BBK longtube headers?

SirRichardLane Year: 2012 Model: GT

Answer This Question I need this answered (0) (0)

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Customer Reviews (28) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.821429 4.8
  • Exhaust Note 4.857143 4.9
  • Fit & Finish 4.392857 4.4
  • Bang For Your Buck 4.678571 4.7



  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    February 21, 2014

    Perfect

    Sounds just like I hoped it would. Got this and Pypes Pype Bombs together. You will definitely KNOW when I head down your street. Couldn't decide between X or H and am glad I went with H pipe

    Top 250 Contributor

    NaplesStang

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 Naples, FL

    Helpful (4) (0)

  • 5/5

    Installation Time: Afternoon

    January 11, 2014

    This in an awesome offroad H...

    First, i was a bit leery about purchasing this without more feedback. However, the first set of cat backs I had were Pypes, and they were good quality, so I rolled the dice. Installed these without help on jack stands. Header-to-cat bolts are 15mm, one on each side accessible from the top, the other accessible from underneath. The nuts on top required a 24" extension and a 24" breaker bar to pop loose (keep in mind, this car has less than 11k on it). That was the only difficult thing with this install. All welds were of great quality. Pipe bends were top notch and everything fit perfectly. The instructions called for cutting the claps from the factory H, so not sure why the previous reviewer took issue with it. Great sound, very similar now to a pushrod 302, when coupled (at least) by my Roush catback. Highly recommended.

    Vettekilr

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 10+ NC

    Helpful (2) (0)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    December 11, 2013

    Enhanced my Roush axleback exhaust!

    One issue during install. The 2 factory clamps that are to be used after bolting the upper section to the manifold are welded to the factory exhaust. The shop that did my install gave me the option to have them removed and tack welded to the new h pipe or they would weld the new parts together. Thats why I only gave 3 stars for fit and finish (otherewise fit and finish were superb)!

    srlewis76

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 South Carolina

    Helpful (2) (0)

  • 5/5

    Installation Time: Full Day

    January 02, 2016

    Worth every penny! Here are some install tips..

    Let me start off by saying I could not be happier with this H pipe. It looks beautiful, it fits perfect and it sounds amazing. I always liked the rumble of an H pipe over an X pipe, and this does not disappoint. I only had a set of GT500 mufflers, and this system unleased the beast in my mustang. What I like most about it, is I am not looking for an exhaust that wakes up the neighbors, but I want something that lets people know that a mustang is coming, and that's exactly what this does. With that in mind I have some tips: First, I called several shops, both chains and small shops, and I couldn't find any that would delete the cats for me. They all are worried about the EPA, so if you buy this, plan on installing it yourself. Second, as mentioned in the install instructions, make sure you have some penetrating oil, and make sure it is stronger than WD-40. I tried that first and ended up going and getting some liquid wrench because those rusted bolts would not budge otherwise. Even with the liquid wrench, plan on working to get those bolts loosened. I had a 1/2 inch socket wrench with about 30 inches of extensions on it, and that took every ounce of strength I had to break those suckers loose from the top. Then breaking the other two loose from the bottom, I used a crescent wrench, and hooked another one on to use as a breaker bar. I found that worked quite well. Third, having the right tools can make things go a lot faster. You will need a 15mm socket for the stock bolts going from the down pipes to the exhaust manifold, as well as for the clamps going from the stock H pipe to the mid pipes. You will also need a 13mm socket for the clamps going from the down pipes to the H pipe. When you switch over to the Pypes set up, the conecting bolts from the exhaust manifold are going to be a 9/16 size, and make sure you have a wrench too so that you can hold one side of the bolts while you tighten the nuts. And finally, when you are installing the new pipes, use a floor jack and a piece of wood to lift up your mid pipes that are hanging down. It is dang difficult to try and hold everything level, while tightening it down. I tried it the first time without doing that and ended up with exhaust leaks out of every break in the pipes because the whole system was sagging. The next day I loosened everything, and when I lifted up the mid pipes I could just see everything line up and fit better. I apologize for rambling on, but I made a fair amount of mistakes that led to this being a much longer process than necessary. Hopefully this helps you avoid some of the same ones I made.

    Andy

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 The Woodlands, TX

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    October 21, 2015

    1 word: obnoxious

    That's all that can really be said about these. being as they're a "O/R" application, in which the cat's are deleted, this simply opens the pipes up to scream. I have a friend who also has high flow cats, they get the same response, very very similar, in terms of loudness. He actually has exhaust on his, where I have a straight pipe and our cars sound near similar. I have a slightly lower tone growl, I believe because he has an X-pipe. If you're looking for a louder car that sounds like you're ready to go, you need this (or other O/R application) or a set of High Flow cats to go with your setup.

    Woolly

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Ira, MI

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    July 07, 2015

    Get this if you can't decide between H or X

    I bought the car with a pypes x-pipe. Sounded really raspy. Switched to the H-pipe and wow was I satisfied with the sound difference. Not sure if there was any performance difference or not but the sound.... YES. If you are deciding between x and h think "raspy rat rod" vs "v8 truck" respectively. Choose whichever you like but there WILL be a difference in sound. It still seems to pull hard all the way up so I really don't think there is a noticeable performance difference between the two configurations. Possibly on paper, but it's not felt, at least not for me. The pipes change color after a while and looks ugly but it is underneath the car so it really doesn't matter. I recommend the h-pipe personally. It is loud, aggressive, and more of that deep v8 sound. Well worth the money. Highly recommend.

    Durkmusic

    Year: 2010 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Myrtle Beach, SC

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    February 17, 2015

    Amazing !

    I took it to the shop as I was injured and couldn't work on it myself and it took them about an hour to install. After the install I turned the car on and I could already tell there was a different rumble to it. It was a deep throaty sound and I liked it. Started driving it around and the loudness and aggressive sound caught me off guard. Great product and great sound. I love it

    GorM

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 SAN JOSE, CA

    Helpful (1) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    December 23, 2014

    pypes offroad hpipe

    Can not beat the sound of american muscle, and fit and finish were awesome i installed this midpipe myself in about 40mins on my driveway the biggest pain is the stock bolt that you have to reach through the top of the engine bay all i can say is have a swivel and plenty of extensions available overall awesome upgrade

    englishryan

    Year: 2012 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 10+ Calgary, AB, Canada

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    July 18, 2014

    Power Unrestricted!!

    Went on a little run after I installed these H-pipes and wow was my first impression! Let's just say the factory cats restrict a lot of your power! As far as the sound It's not bad considering the fact I still have stock mufflers but I'm sure after I purchase a set of Roush mufflers she'll be screaming! Overall great product best bang for your buck!

    ElCaballitoNegro

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Oxnard, CA, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    July 11, 2014

    Excellent H pipe. Directions. Definitely a must for 2011+ GT

    I received this H pipe very quickly. Took my time installing on jack stands, about 2 hours. Some suggestions about installing in garage with jack stands: 1- Remove the front first. The top of the bolt is difficult to access. Try different 13 mm box wrenches. Once loose, although not exactly the correct tool, use a 5.5 mm socket on the exposed stud. Loosen up all the way. 2- Loosen the rear H pipe clamps with a long breaker bar. The nuts are 15 mm and a deep well socket works great. 3- Tap the clamp ALL the way back to allow the H pipe to drop down. 4- Wriggle and pull loose the front of the H. The clamps are tack welded on to it. 5- Once out, use a chisel or screwdriver to cut loose the clamps. Clean up the exposed sharp edges. 6- re-install in reverse order. I suggest lining the old and new pipes up on top of each other and tighten up firmly, with a ratchet, the center clamp provided. The factory H is slightly LESS than 2 inches!!! A must have for a 650 hp Roush blown Mustang with stock exhaust. No increase in drone. Much smoother acceleration.

    Top 100 Contributor

    BULLITT09

    Year: 2011 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 5 Houghton, Michigan

    Helpful (1) (0)

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