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Pypes Off-Road H-Pipe (05-10 GT)

Market Price $240.99 You Save 12% ($29.00)
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$211.99

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  • Item 20125
  • MPN# HFM23

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    Features, Videos & Details

    • Improves Exhaust Flow for More Power
    • Classic Muscle Car Rumble
    • Pypes Modular Construction
    • For Off-Road, Track Use
    • 2.5" 409 Stainless Steel Tubing
    • Fits 2005-2010 GT Mustangs

    Review & Installation Video

    Hey everybody, I'm Justin with AmericanMuscle.com. Welcome to the breakdown and sound clips of the Pypes Off-Road H-Pipe, available for your 2005 to 2010 Mustang GT. Swapping out your factory mid-pipe in favor of an aftermarket option is not only a great way to pick up some power, but can also totally transform the way your Mustang sounds. Now when deciding on a mid-pipe for your own ride, you do have a couple of different options. For instance, we can go with an off-road X-pipe or H-pipe like we have here, which is going to be devoid of any catalytic converters. On the other hand you can go with a catted mid-pipe, which will incorporate some kind of small, high-flow cat into the design. In addition to that, you will have to choose whether you want an H-pipe or an X-pipe. Traditionally you can expect a slightly raspier exhaust note when going with an X-pipe, and it's going to produce some slightly higher top-end horsepower gains. On the other hand, the H-pipe, like I do have with me here today, is going to give you that lower muscle car rumble, it's going to help reduce some of the rasp, and it should produce some slightly lower torque gains. Now, ultimately, guys, it's up to you to decide which mid-pipe you want to go with and what style you're looking for, for your own ride. Getting into some of the details here with this H-pipe from Pypes, you will notice 2 1/2-inch mandrel bent stainless steel tubing for the build, in addition to all your O2 bungs, which have already been pre-welded for you. Now, one thing I do like about this H-pipe from Pypes, is that it is a modular design, meaning there's a few different pieces. So if you ever wanted to switch out the cat-less portion here, for sort of the pipe's high-flow cats, well, you can do so. And you can get more info on those on the product page. Now, whenever doing a mid-pipe video, I do want to remind you guys that this is a full-length mid-pipe. And what that means is it's only going to fit 3-valve cars with the stock headers still in place or an aftermarket pair of shorty headers. Now, if you are looking to do a long tube/mid-pipe combo, then you might want to check out Pypes' other version of this same exact H-pipe, but the shorty version, which is designed to work with a long tube setup. Install is going to be slightly more involved than an axleback, for instance, but overall it really isn't all that bad, say maybe two hours from start to finish, using basic hand tools. Now, keep in mind, guys, most of this install will be done underneath the car, so just make sure you have your jack or jack stands ready or race ramps if that's an option. So if you guys are looking to add both power and sound to your 3-valve GT for a very affordable price, then be sure to check out the Pypes Off-Road H-Pipe, right here at AmericanMuscle.com.

    Improves Flow For More Power. Add even more horsepower and torque to your 4.6L GT 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 2005 to 2010 Mustang GT 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.

    Modular Construction. Pypes unique three piece modular construction makes it quick and easy to add or remove catalytic converters to your exhaust system in just minutes, depending on your driving needs.

    Durable Stainless Steel Construction. Pypes uses sturdy 16 gauge 409 stainless steel mandrel bent 2.5" tubing for improved exhaust flow and features welded reinforcement plates for additional strength.

    Application. This Pypes Off-Road H-pipe is designed to be a direct bolt-on for the 2005 to 2010 4.6L GT Mustangs with either aftermarket short tube headers or the factory manifolds and a dual catback exhaust installed. Intended for off-road, track use only, does not include catalytic converters.

    Fitment: 2005 2006 2007 2008 2009 2010 Details

    What's in the Box
    • (1) Two-piece H-pipe
    • (2) Down Pipes
    • (3) Clamps
    • (2) Reducers
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Standard length "H" Type Headers Required: Shorty or Stock Mainfolds
    Piping Material: 409 Stainless Steel Piping Size: 2.5"
    Catalytic Converter: "No" - For off-road use only Fitment: 2005-2010 GT Mustangs
    Will it fit my Mustang?
    • Bullitt - 08, 09
    • GT - 05, 06, 07, 08, 09, 10

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    38 Questions / 9 Answers

    Ask a Question

    Will this work with stock tubing and after market axle backs? I want to install this in my brother's '08 GT. We want to buy an axle back kit and an off road H pipe and retain the remainder of the stock tubing. Is this possible?

    Jln5685

    • Sure, you can install this O/R H-pipe between your stock manifolds and the flow tubes that would attach to the GT axle-back of your choice. If you have any other questions, don't hesitate to give us a call!

      LisaS

    Show 2 more answers Helpful (2)

    I have a 05 GT with stock headers and a Kooks cat-back exhaust. Will this Pypes mid pipe work with the setup that I have? If it does, do I need a tune?

    Eddie

    • The Pypes Off-Road H-Pipe would work with this setup. A Tune would be required to disable toe cats and prevent P0430 and P0420 codes for catalyst efficiency

      Rob D

    Helpful (1)

    Sound If I keep my factory cats in place and just install the h-pipe without the cat delete pipes, will the h-pipe still deepen my exhaust note and give my car more of the old school muscle car rumble that it is supposed to give?

    JoshCampo

    • You will notice a slight increase in sound with the better flowing mid pipe but your catalytic converters are really what is restricting the air flow and keeping the exhaust quiet. You will not see a real increase in volume or change in tone by just using the H pipe.

      SalC7

    Helpful (1)

    Adding/Removing Catalytic Converters I'd like to run this setup with the Pypes ceramic cats. However, I would like to be able to remove the cats from time to time. So here's my question(s): Just how easy is it to add/remove the cats? It seems like removing the catalytic converters would leave a gap in the exhaust system... wouldn't you need short straight-through pipes in their place?

    Preston

    • Yes, it would leave a gap, you would have to keep the additional pipe area (that was initially cut out) and clamp it back in to place with 2 clamps when the catalytics are not being used.

      josh1989

    Show 1 more answer Helpful (1)

    Do you have to buy the pypes catalytic converter with this? And if so why?

    GaryE

    • The Pypes Off-Road H-Pipe is designed for racing and other off highway use, and does not use or require cats. To retain emissions legality, cats would need to be added, or the catted version of this pipe, linked below, can be ordered. https://www.americanmuscle.com/pypes-catted-hpipe-0510-gt.html

      Rob D

    Helpful (0)

    I see different answers all over the place and i was just wondering if this offroad H-pipe from pypes will fit on a 2005 v6 mustang equipped with the pypes true dual conversion kit?

    MauriceM

    • The Pypes Off-Road H-Pipe is specifically designed for the GT Mustangs. We cannot guarantee that it will bolt up with the Pypes True Dual Exhaust, item # 20018, (https://www.americanmuscle.com/pypes-2005v6-truedual-catback.html) since this cat-back is designed for a V6.

      AshleyK

    Helpful (0)

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    Customer Reviews (100+) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.806122 4.8
    • Exhaust Note 4.520408 4.5
    • Fit & Finish 4.571429 4.6
    • Bang For Your Buck 4.683673 4.7



    • 5/5

      Installation Time: Less than 1 Hour

      February 14, 2018

      Good quality at great price

      You cannot beat the price of these pipes. There is better quality on the market but that does not mean these are bad by any stretch. For an exhaust pipe this totally gets the job done.

      TimB

      Year: 2005 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 03, 2018

      So much louder!

      I already had a Roush extreme cat-back exhaust and I thought it sounded really nice how it was. I put this on and wow it's night and day. It has such a deep muscle car sound that is music to your ears. I have an 05 gt and within an hour of installation some guy in a 5.0 pulled up next to me and asked immediately if I wanted to roll with him and some other 5.0's in the future. I would buy this again in a heart beat.

      SeanM

      Year: 2005 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 26, 2018

      Great sound! Wish it was louder

      The off-road pipe was easy to install, its sounds great and picked up a few ponies. I just wish it was louder to annoy the neighbors. LOL

      Cobra0473

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 03, 2018

      LOUD!

      My mustang is straight piped and now with these Pypes Off Road H-Pipe it is even louder, consider purchasing mufflers as well, sometimes too loud but overall loved them!

      JuanB

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      December 10, 2017

      06 gt vert with cai, no cats and tune

      really woke the sound up on the jba axlebacks, sounds like a gt should now

      bo308

      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Full Day

      December 09, 2017

      WOW!!

      Definitely worth the money. Great sounding, very loud. It catches a lot of attention when driving around town

      DevanL

      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      November 28, 2017

      SUPER LOUD

      FITMENT IS A LITTLE TROUBLESOME AT FIRST BUT OVERALL NOT TO MANY PROBLEMS INSTALLING IT. ALSO VERY LOUD. THE NEIGHBORS WILL HATE YOU!

      ZachD

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      November 23, 2017

      Classic rumble!

      I don't care what anyone tells me! The 3v sounds very similar to the 351w/1970s Mach 1 when cruising. The car rumbles and sounds extremely mean coming down the street. I have this Off road H paired up with JBA axlebacks (not the best) but they get the job done. Chambered mufflers sound good on these cars. Cops are not an issue.. as long as you are smart with it! Don't go WOT every chance you get. Unfortunately, I paid 150 for this install at a muffler shop. They welded everything together! I'm happy but my wallet was not.

      Davon

      Year: 2006 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      November 20, 2017

      Easy install, sounds amazing!

      Install went smooth. I track often and these pipes really open up the exhaust note. Car sounds like a beast on the track now. Install was fairly simple, however the hanger for the H-pipe is very cheap and I broke it easily. All the other hangers were of better quality. AM, please include a better hanger for H-pipe connection.

      Mike

      Year: 2005 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      November 08, 2017

      Deep and loud

      Pretty easy install if your not dealing with rusted bolts. Have straight pipe axle backs and with this it is pretty dang loud but sounds like a hot rod almost, rev it high the sound is ridiculous. Glad I installed!

      Chmitty

      Year: 2009 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      October 31, 2017

      Deep muscle tone

      This H Pipe gives a very old school muscle tone. Mine are attached to stock headers and pypes cat back. Completely changed my cars tone. Fit very well. My exhaust manifold studs were seized and broke off so I had to drill out hardened studs which is the only reason the install time says an afternoon. Would definitely recommend.

      DaleA

      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      October 12, 2017

      Love them

      Local shop installed for $90. Well worth the money. Love the tone.

      Remy

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      September 24, 2017

      All you can do is smile

      Got the Off Road H pipes on my 08 Gt/Cs which is an automatic and has no mufflers and no resonators. The dead will hear you coming plain and simple this mid pipe PERFORMS amazing and SOUNDS amazing . I'm running it on a 93 Octane tune with a JLT S3 CAI and I can still sneak around if need be. You see the police, act like you got some sense and you'll be fine but trust me this thing can get you in some trouble

      DanielH

      Year: 2008 Submodel: GT500

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      September 15, 2017

      Off Road H-Pype

      Fits perfectly! I would reccomend an extender for the top O2 sensor on the passenger side but other than that product is great. I'm very pleased with the sound it produces.

      CoryP

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      August 30, 2017

      Great Fit

      I bought this to replace a rattling cat on my 06. My car is a daily driver with 90,000 miles on it. I was a little worried about getting the manifold connection off without breaking a stud, but everything went smooth as silk. The original H pipe came out quick and the new one went on without any issues. It took me about 2 hours start to finish. I welded the H pipe connection as recommend by Pypes. I am surprised how loud it is though. The car is twice as load now, and it feels a little quicker (hard to tell though). I am a little shocked how much the cats quiet down the exhaust. I have Mac Boomtube axle backs, and it really has an aggressive sound. I might have to put the stock muffler back on!

      joehan

      Year: 2006 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      August 14, 2017

      Pypes cat delete

      Great fit, direct bolt on. Really wish they were two piece instead of four to eliminate 2 clamps otherwise very happy with them.

      2btlrepair

      Year: 2008 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Less than 1 Hour

      August 09, 2017

      3/5

      Sounds very good but way too loud and raspy matched up with Mac Boom Tubes

      Tay2k

      Year: 2005 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Full Day

      July 30, 2017

      H Pipe

      Sounds great, easy install. Very happy with all of pypes products.

      AlysonU

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      July 20, 2017

      SO LOUD!

      Had a hard time doing it myself with messed up studs but after taking it to a shop and having them put the h pipe on I was throughly pleased

      Joshua

      Year: 2008 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      July 20, 2017

      Loud

      Like everyone else has said it's loud! Fitmet was perfect and install was easy but way to loud with pype bomb mufflers. May sound better with different mufflers

      Dantrin36

      Year: 2006 Submodel: GT

      Helpful (0)

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