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MAC Off-Road H-Pipe (79-93 5.0L)

Market Price $225.35 You Save 38% ($85.40)
Our Price

$139.95

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  • Item 40067
  • MPN# 438690

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    Features & Details

    • Improves Exhaust Flow for More Power
    • Classic Muscle Car Rumble
    • For Off-Road, Track Use
    • 2.5" Mandrel-Bent Aluminized Tubing
    • Fits 1979-1993 5.0L V8 Mustangs
    Improves Flow For More Power. Add even more horsepower and torque to your 5.0L Foxbody Mustang by eliminating those power robbing factory catalytic converters with a brand new MAC Off Road H-Pipe. The MAC Performance 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 Mac Performance Mid Pipe will not only increase horsepower and torque, but it will also add a deep muscle car rumble to the sound of your exhaust with its classic "H" crossover pipe design.

    High Quality Construction. Mandrel bent from durable 2.5" steel tubing so there are no kinks to rob you of power, this MAC Performance Mid Pipe has been hot-dip coated with aluminum-silicon alloy to aluminize the steel to protect against corrosion and rust.

    Application. This Mac Performance Off-Road H-Pipe is designed to fit the 1979 to 1993 5.0L V8 Mustangs, including the LX 5.0, GT and SVT Cobra models with either aftermarket shorty headers or the factory manifolds installed.Technical Note. This MAC Performance product is intended for off road use, and is not legal for use in emission restrictive states.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 Details

    What's in the Box
    • (1) Off-road H-pipe
    • (2) Down pipes
    • Installation hardware
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Standard length "H" Type Headers Required: Shorty or Stock Manifolds
    Piping Material: Aluminized Steel Piping Size: 2.5"
    Catalytic Converter: "No" - For off-road use only Fitment: 1979-1993 5.0 V8 Mustangs
    Will it fit my Mustang?
    • GT - 87, 88, 89, 90, 91, 92, 93
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Other - 79, 80, 81, 82, 83, 84, 85, 86

    People Who Bought This Item Also Bought

    Most Helpful Reviews

    5/5
    awesome fit fair price

    This H pipe is top quality as good as any other brand of H pipe I've had them all over the years and I love the 3 piece design of the mac H pipe its far easier to install and gives you adjustment unlike ...

    Read More
    Helpful (3)

    5/5
    Great h pipe

    Lot easier than the h pipe thats welded together to put on and adjust

    Helpful (2)

    Overall Rating 4.5 out of 5 stars
    Read All 45 Reviews

    Customer Photos (4) Submit Your Photo

    View All 4 Photos

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    5 Questions / 5 Answers

    Ask a Question

    Can this h pipe be used with long tube headers if the 2 pieces that go to the shorty headers are removed?

    Mich

    • The MAC Off-Road H-Pipe would not work with long tube headers as these are meant to bolt up to shorty headers or the stock manifolds.

      Ricky36

    Helpful (0)

    I have 88 GT convertible with auto trans. will this work?

    SP

    • This MAC Off-Road H-Pipe will work with your automatic 1988 GT convertible with no issues.

      Rob D

    Helpful (0)

    I have a 1988 gt, I have stock exhaust manifolds and stock 4 cat H pipe to a flowmaster 40 dumps.will this work and what happens to the oxygen Sensors do they fit on this pipe and will I have Trouble with the engine light coming on with this H pipe.

    AnthonyP

    • The MAC Off-Road H-Pipe will in your exhaust with no issues. The O2 sensors will install into this H pipe and you should not see any check engine lights as there is no catalyst monitor on your 1988.

      Rob D

    Helpful (0)

    This should have no problem bolting up to BBC headers and flow master mufflers right???

    Mustangmaddy

    • Hey Mustang Maddy! This will work with BBK headers as long as they are shorty headers and not midlength or longtubes. But it will definitely fit with the flowmasters!

      Cobra_Machine04

    Helpful (0)

    Will this H-pipe fit an '85 LX convertible with a factory single hump trans crossmember ?

    TonyF

    • The MAC Off-Road H-Pipe will require 79-85 owners to convert tow the later double hump trans crossmember for proper fitment.

      Rob D

    Helpful (0)

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    Customer Reviews (45) Write a Review

    Overall Rating 4.5

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.466667 4.5
    • Exhaust Note 4.688889 4.7
    • Fit & Finish 4.355556 4.4
    • Bang For Your Buck 4.733333 4.7



    • 5/5

      Installation Time: Afternoon

      August 05, 2017

      awesome fit fair price

      This H pipe is top quality as good as any other brand of H pipe I've had them all over the years and I love the 3 piece design of the mac H pipe its far easier to install and gives you adjustment unlike the BBK or one piece design H pipe I have two Fox body mustangs and the mac H pipe is on both of my cars one car with a 351w and vortech supercharger. If you're buying a H pipe look no further buy this you'll be happy. As fair as install goes start with the passenger side and install your O2 sensors before installing the pipe it will be a tight fit after the pipe is on to install the passenger O2 sensor install everything to a snug then after everything is on go back and tighten everything down making any adjustment as you go, work from the headers back while tightening your connections. Very easy and money well spent.

      Smigie

      Year: 1991 Submodel: LX

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      March 31, 2017

      Great h pipe

      Lot easier than the h pipe thats welded together to put on and adjust

      Stevew

      Year: 1987 Submodel: GT

      Helpful (2)

    • 2/5

      February 06, 2017

      h PIPE

      tROUBLE WITH THE PASSENGER SIDE CONNECTOR PIPE COULD NOT USE A SENSOR AS IT WAS TIGHT TO THE BELL HOUSING WRONG BEND IN PIPE 2 INCHES OFF TO FIT IN SUPPORT BRACKET

      WilliamM

      Year: 1984 Submodel: Other

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      March 16, 2016

      Dodge and Chevy slayer

      really like the three piece set up much easier to install and you can make small adjustments. nice flanges and all hardware needed.

      therapy

      Year: 1990 Submodel: Other

      Helpful (2)

    • 4/5

      Installation Time: Less than 1 Hour

      June 25, 2013

      Bolts right in

      After removing the old h-pipe and replacing the header studs at the flanges (which broke). I got this in in about an hour or less. The double joint design is easy to work with and allows some adjusting to get the right fit with the catback. The O2 sensor bungs are placed amazingly and have optimal clearance from the frame. The downsides of this product is that it lacks the rubber tube to connect the smog pump to the new pipe which the BBK h-pipe includes. I used heater hose and worm clamps to connect them,(I can't remove the smog pump due to emissions checks each year).

      TD350

      Year: 1990 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      April 18, 2017

      Great Fit

      I installed this system on a Sunday afternoon. Great fit, nice not having to worry about clamps. One thing I did learn is to install the passenger side lead pipe first, making sure O2 sensor is in correct position before snugging it up. You can make adjustments on the drivers side if needed. Found this out the hard way, had to remove the system when I found out I could not install O2 sensor. My mistake, trying to help others out. I went with Dynomax system including Dynomax Super Turbo mufflers with tailpipes. Love the way it sounds. I am sure it will get louder with time, if anything, I may change mufflers to MAC mufflers in future. Happy for now.

      LarryT

      Year: 1992 Submodel: LX

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      April 06, 2017

      Fit like a glove

      This H-pipe is made really well. I like that it comes in 3 sections for making install much easier. Even the o2 sensors were in a good spot. Cleared the Automatic transmission. Just make sure you put the 02 sensor's in first, or your going to have a hard time getting them in afterwards.

      jkstang78

      Year: 1981 Submodel: Other

      Helpful (1)

    • 2/5

      Installation Time: Afternoon

      March 17, 2017

      OK pipe

      I installed the product in a couple of hours, and after making sure all connections were tight, I was disappointed to hear hissing exhaust leaks at the middle section connection. I climbed back under the car, and made sure everything was retightened, and it sounded a lot better. 2 days later, and the connections are hissing loudly again, so now I have to spend the money, and find someone with a welder, or pay for it to be welded.

      CraigB

      Year: 1989 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      February 26, 2017

      Great fit bolt on

      They fit awesome and no need to pay a shop a ton of money do it yourself with these and they sound great.

      NicholasL

      Year: 1986 Submodel: Other

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      February 16, 2017

      Great Mod, relatively easy to install

      Sounds 50x better than the exhaust I had on there, and has that low rumble that I was hoping for.

      ChristopherW

      Year: 1984 Submodel: Other

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      January 02, 2017

      Fast and easy install

      Fit perfectly no issures at all would definitely recommend

      jarmst04

      Year: 1992 Submodel: LX

      Helpful (1)

    • 5/5

      December 10, 2016

      Sounds Awesome

      I got a shop to put it on for me and it sounded like I thought it would pure power. I love MAC always a fan.

      Beezer

      Year: 1993 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 17, 2016

      Great bang for your buck!!

      The exhaust is great I have mac shorty headers and the exhaust bolted right up to them. Fairly easy to install with the three piece setup. Overall I'd recommend this to anybody who's looking for a good sounding mid pipe for 5.0 fox.

      Sk3

      Year: 1985 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      April 11, 2016

      Sweet

      Awesome delivery time. Everything bolted right up into position. Only bad think somebody forgot to put the hardware in the package. Had to tromp to Home Depot to buy some.

      86gtconvertible

      Year: 1986 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      November 27, 2015

      great sounding

      i was torn between this and the bbk mid pipe really glad i got the mac i really love the sound and it bolted right up to my cat back and headers. its not to loud at cruising speed but when you open it up it screams!!

      richard

      Year: 1991 Submodel: GT honey brook pa

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      October 13, 2015

      GOOD BANG FOR YOUR BUCK

      exactly what it is, off road h pipe. Shop said it was a good fit, less restriction. Not sure of the power difference but the sound is much better than with the h pip with duel cats. Always liked MAC products and this one like the rest doesn't change my mind.

      longstang

      Year: 1985 Submodel: GT Northern, VA

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      August 29, 2015

      Mac offroad exhaust

      Easy install, fits like a glove. I've had three off road exhaust pipes, mac is by far the one I recommend. Thanks AM for another great product.

      LEE5961

      Year: 1992 Submodel: Other Baltimore,MD

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      July 20, 2015

      MAC Off-Road H-Pipe for 79-93 Fox Mustang

      Always wanted a MAC off-road H-pipe so when redoing my exhaust, it was an easy choice! I was very pleased to see that they have added a second connection to make installation and shipping easier. Having installed 1 piece aftermarket setups previously from companies like BBK, this makes install ALOT easier and can be done on your own but a second set of hands is always welcome. Fit and finish very similar to BBK pipes i've seen in the past. Nice sound as you'd expect. With everyone moving to an X-pipe i'm glad there is still the classic MAC H-pipe still available for that "5.0 burble" we all love!

      XJay

      Year: 1989 Submodel: Other Calgary, AB

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      December 23, 2014

      MAC H pipe

      My friend who installed it had to do some modification to make it work properly. The flanges that bolt it to the rest of the exhaust system had to be modified slightly. The car now sounds like it has a NASCAR engine when it revs above 3000 rpms, I has a cool sound now. Overall I am satisfied with the product.

      Steveo64

      Year: 1988 Submodel: Other Lake Alfred, FL, USA

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 23, 2014

      great sound and fit great!

      Glad I purchased this. I already had the Mac Catback and this was what i needed to finish it off. A+ product!

      423GT

      Year: 1988 Submodel: GT Chattanooga, TN, USA

      Helpful (1)

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