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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

    CA Residents: Warning: California's Proposition 65

    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?

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    Questions & Answers (47)

    5 Top Rated Questions

    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?

    • 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!

    Helpful (3) Show 2 more answers

    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?

    • 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

    Helpful (2)

    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?

    • 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.

    Helpful (2)

    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?

    • 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.

    Helpful (1) Show 1 more answer

    Hello, does this bolt up to the stock manifolds directly for a 2006 mustang gt?

    • 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.

    Helpful (0)
    Post Your Question
    10 More Questions
    Currently i have a pypes muffler delete pypes longtube headers on, if i were to buy this h-pipe would it fit if it was welded on? 1 answer
    I have a 2010 v6 with dual exhaust will this fit my car 1 answer
    I plane on putting this on my car then adding the cats down the road. I was wondering if it is necessary to get a tune right away or is it something that might be able to wait a few weeks or so? 1 answer
    I have shorty jba headers with stock cat- backs on my 07 gt/CS with slp loudmoutb. Will these bolt on directly to my headers with no problem. Second question what can I use for the check engine light not to turn back on once install them. 1 answer
    I did a dual conversion on my V6 mustang .. why won’t these fit my v6 mustang ... is it the 02 sensor location or the length of the pipe that might not align right ? 1 answer
    Truly, how bad is it to run this without a tune? I know the check engine light will come one, but will the car ride rough? If so, how long could I go without a tune? 1 answer
    I have the Borla ATAK catback installed curious if this will boot right up to it? Or if I’m going to have fitment issues or what the rundown is 1 answer
    Will this pass inspection in Texas? 1 answer
    Do you have to buy the pypes catalytic converter with this? And if so why? 1 answer
    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? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Loudness / Volume 4.75 4.8
    • Exhaust Note 4.566667 4.6
    • Fit & Finish 4.608333 4.6
    • Bang For Your Buck 4.708333 4.7



    • 5/5

      Installation Time: Afternoon

      October 14, 2018

      Awesome deep sound

      The off road h pipe creates such a deeper more loud sound for my 09 mustang. Perfect note that I was expecting. Cruising speed it isn’t over bearing, but when you get after it on the pedal, it will meet your expectations.

      WesleyPruyn

      Year: 2009 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Less than 1 Hour

      August 30, 2018

      Nice Sounding H pipe

      This off-road H pipe sounds much better than the off-road X pipe way too much Raspe with the X pipe I bought the H pipe and it is interchangeable with the downpipe‘s from the X pipe kit so you don’t have to mess with your manifolds to change them over They should be welded to gather though because the 50 Cent clamp they send it with to connect the ag they should be welded to gather though because the 50 Cent clamp they send with to connect the H to gather is a piece of junk so you will either need to buy a heavy duty clamp or have it welded together other than that everything fit well not as much horsepower on the top end as the X pipe but much better sound

      ChrisH

      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      July 12, 2018

      Pypes O/R H-Pipe

      As soon as h-pipe got to the house I took it to a local shop had them install it . It really opened up the exhaust flow , sounds awesome ! Excellent product for the price.

      willard11

      Year: 2009 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      June 30, 2018

      2010 Mustang gt

      Shipping was quick install was easy and sound is great!

      BrandonS

      Year: 2010 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      June 30, 2018

      Great addition

      Went on perfect easy to install. Very happy with sound from these along with bbk short you’ve headers and slp tail pipes

      FrankieM

      Year: 2005 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 28, 2018

      2006 gt great sound

      great fit great sound not to loud good exhaust tone , great price can't go wrong with pypes !

      wolfpacklucian

      Year: 2006 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      June 26, 2018

      LOUD!!!

      Do you want you mustang LOUD this is this item you need no doubt!!!

      TyroneB

      Year: 2007 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Afternoon

      June 10, 2018

      Wow great product

      I was a little worried how it was gonna sound way to loud with my Flowmaster outlaw axle backs but to my surprise it’s not that bad but it is loud! Absolutely love the sound. Sounds like a classic muscle car. Had a hard time taking out the old H because I didn’t have a the appropriate deep sockets. Make sure you prop the H while installing like the instructions say. I failed in doing that and it sprung and leak. Which I hope I fixed. Was skeptical on the hangers because I don’t have rubber mounts to attach it anywhere. Oh well. Definitely recommend if you don’t want X pipe rasp/exotic sound.

      Dakota

      Year: 2009 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Afternoon

      June 01, 2018

      Woah! A little overboard with Flowmaster Outlaws.

      Mods I currently have: Airaid CAI, this new Pypes Off-Road H-Pipe (cat-delete), and Flowmaster Outlaw Axle-Back/Corsa Xtreme Axle-Back Mufflers. Everything else is stock. I replaced my Flowmasters with the Corsas strictly due to the drone at 1.5-2k RPM. I put the Flowmasters back on when I installed the H-Pipe to see how they will sound together (strictly to see if the drone would die-down with the louder rumble of the H-Pipe. I have to say that I think it did a bit!). Now for the H-Pipe itself.. WOW! I thought the Flowmasters alone were a bit too loud. This Mid-Pipe makes the mustang SCREAM. I would be careful getting these if you have a fairly loud pair of mufflers like the Flowmaster Outlaws; you will definitely have eyes on you (some you don't want ;D). The rumble at idle is definitely a lot more noticeable and I LOVE it! Cold-starts are definitely going to wake a neighborhood up. I plan to put the Corsas back on soon to see how those sound with this H-Pipe. I will update this review when that happens (if possible). Now for the install, it took me several hours. There is a bolt the stock H-Pipe is connected to (passenger side) the header, and that alone took me about an hour to try to figure out how to get it out. I had to get an 18 or 24 inch ratchet extension to get it (AM's guide says a 10 inch extension should work, but it didn't for me). That was the hardest part of the install. In the end, this H-Pipe is VERY loud compared to the stock H-Pipe. For $180-200, it is definitely a bang for your buck. Again, be careful if you already have a fairly loud pair of mufflers (it is a little overboard with this H-Pipe addition!). Stay safe, friends!

      Zac

      Year: 2005 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Weekend

      May 27, 2018

      Nice product

      Only trouble I had was getting the stock exhaust off . Make sure your soak the bolts the night before . Other than that , the H Pipe was easy to install . I have FR500 axle backs , really growls now .

      PaulJ

      Year: 2008 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 19, 2018

      Insanely LOUD

      This will make your car scream lol its a bit much, but amazing if your goal is purely noise.

      LeviM

      Year: 2005 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 17, 2018

      07 Upgrade

      These will let ur exhaust breathe a whole lot better. Easy install and exact fit. Fast delivery was a plus!

      Willie

      Year: 2007 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 02, 2018

      Pypes Offroad H

      Loud aggressive tone, perfect for waking the neighbors at 5AM on the way to work.

      JTDSR

      Year: 2008 Submodel: GT

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      April 23, 2018

      Sounds good

      Not sure I’m really too crazy about the modular design of these however they do sound great gave my card that particular “Mustang” sound I was looking for

      ToddC

      Year: 2006 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 18, 2018

      Nice and LOUD!!!

      Pypez sound great in combination with aggressive over axle Corsa mufflers. Really wakes this thing up and the neighborhood. Tone is a little controlable under 2,000 rpm if worried about the police.

      ToddD

      Year: 2005 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 08, 2018

      The sound

      I was looking for an exhaust system that would sound loud and mean. Pypes is that system.

      GeorgeH

      Year: 2008 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      March 16, 2018

      H-PIPE

      Great! Sounds good and easy install, You can tell a big difference

      JasonH

      Year: 2007 Submodel: GT

      Helpful (3)

    • 1/5

      Installation Time: Full Day

      March 13, 2018

      Way too loud!

      Had them installed on my 2007 mustang, and they are incredibly loud. Will have to remove them :(

      JudyP

      Year: 2007 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      March 12, 2018

      Best mod so far!

      Sounds awesome with SLP loudmouths. Install instructions could be better.

      JasonH

      Year: 2006 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Afternoon

      March 12, 2018

      Super cool

      Sounds a lot better than I expected!!took about 2 hours to install !

      Clawson

      Year: 2008 Submodel: GT

      Helpful (3)

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