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MAC Off-Road Pro Chamber Mid Pipe (79-93 5.0L)

Market Price $438.39 You Save 27% ($118.40)
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  • Item 40071

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Ship to: Ashburn - 20149
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    Features & Details

    • Improves Exhaust Flow for More Power
    • Unique Pro Chamber Crossover Design
    • For Off-Road, Track Use
    • 2.5" Mandrel-Bent Aluminized Tubing
    • For Use with Shorty Headers or Stock Manifolds
    • Fits 1979-1993 5.0L V8 Mustangs
    Increase Exhaust Flow. Get rid of those power robbing factory catalytic converters and uncork your Mustangs hidden power with a MAC Performance Off-road Mid-Pipe. Featuring their exclusive Pro Chamber style crossover and free-flowing mandrel-bent piping, this high performance Mid Pipe will dramatically improve exhaust flow for more horsepower and torque.

    Aggressive Muscle Car Rumble. This free flowing MAC off-road Mid Pipe not only increases the horsepower and torque of your Mustang, but with its unique Pro Chamber cross over design it adds a more aggressive muscle car rumble to the sound of your exhaust, that the standard H-Pipe just can't match.

    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 Pro Chamber Off-road Mid-pipe is designed as a direct bolt-on for the 1979-1993 5.0L Mustangs, including the LX 5.0, GT and SVT Cobra Models with either aftermarket shorty headers or the stock manifolds installed. Intended for off-road, track use only, does not include catalytic converters.

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

    MPN# PC8693

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Mid-pipe
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Standard length 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?

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    Questions & Answers (2)

    2 Top Rated Questions

    Will these fit my 90 GT with stock headers?

    • The MAC Off-Road Pro Chamber Mid Pipe will fit with stock headers and aftermarket shorty headers.

    Helpful (0)

    if i later decide to go with long tube headers will these still work

    • If you were to decide to later switch to long tube headers, the MAC Off-Road Pro Chamber Mid Pipe (79-93 5.0L) will not be able to work as the end that connects to the downpipe is a different size. I would suggest going with the MAC Off-Road Pro Chamber Mid Pipe - Manual (79-93 5.0L w/ Long Tube Headers) item #40070 (

    Helpful (0)
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    Customer Reviews (8) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 3.75 3.8
    • Exhaust Note 4.375 4.4
    • Fit & Finish 4.625 4.6
    • Bang For Your Buck 4.625 4.6

    • 5/5

      Installation Time: Full Day

      January 09, 2018

      Sound good.

      I installed two days ago. Its not to loud at idle but you still feel the pounding from the throw downs. I got mac from front to rear easy install everything you need.


      Year: 1989 Submodel: GT

      Helpful (6)

    • 4/5

      Installation Time: Afternoon

      November 27, 2017

      They give it a nice sound

      I put them on with ease after I found out which way they went. I like the sound of them


      Year: 1988 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      June 26, 2017

      Great Product

      Install was simple, but took a bit of elbow grease. Not sure if the alignment of the hangers was a touch off or not, but eventually wrestled it into place. Noticed an immediate bump in power. This product truly works; on a SC'd car it was easy to tell the difference after taking the cats off. The O2 sensor placement is also a bit easier to get at than the OE pipe. Sounds glorious. Not too loud, just right to make some noise pulling away from a red light.


      Year: 1991 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Less than 1 Hour

      April 03, 2016

      Excellent product

      A little more expensive than a regular off-road pipe but well worth the money . Fit and finish was excellent took about 1/2 to install . Very easy to line up . Quiets down the exhaust when using the American Thunder exhaust compared to a regular H-pipe or X-pipe. had to tweak the air pump pipe a little to get air pipe properly lined up .


      Year: 1992 Submodel: Other

      Helpful (8)

    • 5/5

      Installation Time: Afternoon

      December 18, 2014

      Great sound and exhaust flow!

      The Mac Pro Chamber has a great tone when combined with the Mac cat back system. Add some additional HP in a little over 2 hours.


      Year: 1993 Submodel: GT Katy, TX

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      October 21, 2014

      Sounds amazing

      This exhaust is the best sounding exhaust I've had


      Year: 1989 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      December 21, 2013

      86 hatchback

      Great quality and fit perfectly in with my bbk shorty headers and flowmaster cat back. Not much change in sound at idle or when cruising. But the first time I punched it it sounded the way a muscle car should and the power increase was phenomenal. Everything came wrapped nicely in one kit with all the hardware. I did have to chase some of the threads because of the aluminum finish but other than that it was well worth the money.


      Year: 1986 Submodel: GT West Chester, PA, USA

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      March 07, 2013

      great product.

      All in all not a bad system. They should label the pipes to make the install a little easier per the shop installer. On my car they needed to relocate the O2 bung on the passenger side.


      Year: 1992 Submodel: GT Sterling Heights, MI, USA

      Helpful (6)

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