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

AmericanMuscle no longer carries the MAC Off-Road H-Pipe (79-93 5.0L). Please check out 1979-1993 Foxbody Mustang H-Pipes for an updated selection.

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: Details

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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?

    Customer Photos (5) Submit Your Photo

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      Questions & Answers (14)

      5 Top Rated Questions

      Will this product fit my BBK shorty headers without welding or and extra trouble on putting them on?

      • Yes, they will fit the BBK shorty headers without any issues. No welding will be required.

      Helpful (0)

      Which is better for more horsepower X pipe or H pipe exaust

      • Genrally the X-pipe will offer more power however it is very slim and there really is not much of a difference.

      Helpful (0)

      Will this h-pipe require O2 sensor extensions

      • No, this will not require O2 sensor extensions. 

      Helpful (0)

      Will this h-pipe require 2 sensor extensions

      • This H-pipe will not need o2 extensions since it is the same length as the stock mid-pipe.

      Helpful (0)

      will fit on stock 2-1/4 cat back exhaust?

      • Yes, this mid pipe will work with the stock cat-back exhaust system.

      Helpful (0)
      Post Your Question
      9 More Questions
      Does it have a air tube connection and a place for o2 sensors 1 answer
      Will this mac H-pipe fit the mac shorty headers and pype violator catbacks? 1 answer
      Will this bolt up to factory V6 manifolds? 1 answer
      Will this fit a 1994 cobra? 1 answer
      Can this h pipe be used with long tube headers if the 2 pieces that go to the shorty headers are removed? 1 answer
      I have 88 GT convertible with auto trans. will this work? 1 answer
      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. 1 answer
      This should have no problem bolting up to BBC headers and flow master mufflers right??? 1 answer
      Will this H-pipe fit an '85 LX convertible with a factory single hump trans crossmember ? 1 answer

        Customer Reviews (61) Write a Review

        Overall Rating 4.3

        out of 5 stars

        Installation Time:Afternoon

        Installation Cost:$100-$250

        • Loudness / Volume 4.52459 4.5
        • Exhaust Note 4.606557 4.6
        • Fit & Finish 4.327869 4.3
        • Bang For Your Buck 4.622951 4.6



        • 1/5

          Installation Time: Shop Install

          Installation Cost: $250-$500

          April 30, 2019

          Didn't Fit

          My mechanic couldn't install this h-pipe because it didn't fit with the long-tube headers (56209 - BBK 1-5/8 in. Ceramic Long Tube Headers) and Pype-bomb cat-back system (20133 - Pypes Pype-Bomb Cat-Back Exhaust) that we bought from American Muscle. I have a 1990 notch back Mustang with a 5.0 liter engine and automatic transmission. So, I had to return the h-pipe and had to have an h-pipe custom made at a local muffler shop. BTW, according to my mechanic, in order to get the headers installed on the right side of the engine, some trimming had to be on the "dust cover" around the transmission. So, the "plug and play" capability for the headers and h-pipe didn't work for my car.

          1990LXNB

          Year: 1990 Submodel: LX

          Helpful (0)

        • 4/5

          Installation Time: Afternoon

          March 21, 2019

          Off-road h-pipe

          Fits good sounds good. But the old ones had a nicer looking finish

          johnB

          Year: 1990 Submodel: GT

          Helpful (0)

        • 4/5

          Installation Time: Afternoon

          November 18, 2018

          Not bad

          Took me a while to install, had to move some things around a little but was worth it sounds great better then I expected. An extra pair of hands would help a lot!

          Jovanni

          Year: 1993 Submodel: LX

          Helpful (3)

        • 1/5

          Installation Time: Afternoon

          October 20, 2018

          Junk

          If you expecting a quality product with a perfect or even good fit this is not it took a lot of pulling and even a little grinding to fit and the o2 sensor bung was in my opinion in the wrong spot dangerously close to the bell housing on the passenger side Mac used to make great products just the fact it comes in 3 pieces now to fit into a smaller box for shipping should tell you want you need to know save $100 and buy a cheap one I can’t believe it will fit any worse also I had to cut the hanger off and move it back because it wouldn’t reach the header on the passenger side also

          KeithT

          Year: 1989 Submodel: LX

          Helpful (3)

        • 5/5

          Installation Time: Less than 1 Hour

          September 13, 2018

          Mac off-road H-pipe

          Great product. Shipping was fast and the install was easy everything fit with no problems. I like that it came with the hardware needed to bolt on. It sound great definitely gave my 93 5.0 the sound I was looking for.

          DevonF

          Year: 1993 Submodel: LX

          Helpful (3)

        • 3/5

          Installation Time: Less than 1 Hour

          September 05, 2018

          Too loud/raspy

          Fit wasn't perfect but happy with quality and it comes with hangers already welded on but is way to loud/raspy sounds like a truck or Harley! I will b getting a pair of high flow cats to fix the horrible raspyness an quiet it down bit

          MarlonP

          Year: 1988 Submodel: LX

          Helpful (3)

        • 5/5

          Installation Time: Afternoon

          July 19, 2018

          Pipes

          But it on the stang with some cheap 2 chamber mufflers sounds great and easy install . Made it a little peppy maybe in my head but I like them .

          GlenM

          Year: 1983 Submodel: Other

          Helpful (6)

        • 5/5

          July 08, 2018

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

          I order MAC Off-Road H-Pipe (79-93 5.0L) and Love the product. Also love the fact that it showed up on time like they said and will be doing more business with them in the future.

          Jason

          Year: 1985 Submodel: Other

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          June 16, 2018

          perfect fit!!

          very easy installation on my 1o85 GT with 93 5.0. sound great and look great. All of the necassary hardware was included and they were delivered rivht on time when they were scheduled..

          MichaelM

          Year: 1985 Submodel: Other

          Helpful (7)

        • 5/5

          Installation Time: Afternoon

          June 10, 2018

          Great pipes

          Went together well, easy to assemble and they sound great.

          SaulW

          Year: 1988 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Less than 1 Hour

          May 21, 2018

          Great fitment

          Mac is my number one choice for mustang exhaust . Fitment, quality, price, and sound can't be beat .

          stangbanger22

          Year: 1986 Submodel: Other

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          April 12, 2018

          Great

          Great product, shipped to me fast and easy to install, it sounds amazing with my Flowmaster 44 series

          BradlyT

          Year: 1991 Submodel: GT

          Helpful (6)

        • 3/5

          Installation Time: Afternoon

          March 29, 2018

          Sounds awesome but...

          Fitting is awesome, easy to install but there is an exhausted leak that I can hear. Other than that awesome pipes

          Seb

          Year: 1986 Submodel: Other

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          March 22, 2018

          Great Flow

          Installed on my stock 93 Mustang GT. Easy installation after stock exhaust was removed. Really improved exhaust flow.

          JeffreyS

          Year: 1993 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          March 01, 2018

          Good buy

          Fits great. Easy install. Price was right. Time will tell how it holds up. What more could you ask for?

          DrewM

          Year: 1990 Submodel: LX

          Helpful (6)

        • 2/5

          Installation Time: Afternoon

          February 17, 2018

          nice looking but leaky flange

          I installed this on my 89 LX 5.0 with the stock headers. Easy enough to put in but I could not get the passenger side to seal up. Took it apart several times but it appears the H pipe flange might be too large for the stock header flange. The leak was bad enough to be heard while driving. Disappointed. Will most likely have to get after market headers to see if they fit better. Project on hold for now.

          tomass

          Year: 1989 Submodel: LX

          Helpful (7)

        • 2/5

          Installation Time: Afternoon

          January 13, 2018

          Get what you pay for.

          Not a simple bolt on and off. I had yo oval the holes to the manifolds/ factory headers. After bolting it on it wouldn't line up with the mufflers. This car is completely stock . I own a 97 mustang cobra , I installed a BBK H pipe without a problem. Sorry but I did not like this pipe.

          JoseV

          Year: 1988 Submodel: GT

          Helpful (7)

        • 5/5

          Installation Time: Afternoon

          December 18, 2017

          Great fit, excellent quality and fast shipping!

          The Mac off road H pipe was a direct bolt on, easy fit once factory H pipe is removed, the key to this system fitting so well is it’s 3 piece design. Note to all that are installing make sure to assemble all pieces before tightening any clamps, the right side O2 sensor will be close but if you rotate the H pipe leg counter clock wise before tightening it works perfect! Noticed quicker throttle response and paired with the Flowmaster American Thunder cat back exhaust it sounds AMAZING! Gave my 93 LX Hatchback the true Foxbody sound I was looking for!

          SBW

          Year: 1993 Submodel: LX

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          December 12, 2017

          Very good fitment

          Work very well with equal length shorty headers and dumps. Bolted directly on place without any modification; bends were perfect. My car is no longer fuel injected, but it was very simple to plug all of the sensor ports using steel NPT threaded plugs welded in place and stock mild steel bar for tube connection. Be sure to use a corrosion resistant heat specific paint on any welds to help avoid corrosion issues.

          DouglasS

          Year: 1987 Submodel: GT

          Helpful (7)

        • 5/5

          Installation Time: Less than 1 Hour

          November 30, 2017

          Great for the price!

          Can't beat the value. Fit pretty good and sealed well. I bought it because my old H pipe (2 piece MAC) would not seal up to my new BBK headers. One of the down tube ends came dented but i tapped it out with a ball peen and it was fine. A little raspier than my old H.

          MatthewV

          Year: 1993 Submodel: LX

          Helpful (6)

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