Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 From Rovos! Enter daily!
Win Any MBRP XP Series Exhaust! Enter Daily

MAC Off-Road Pro Chamber Mid Pipe (79-93 5.0L w/ Long Tube Headers & Manual Transmission)

Market Price $423.70 You Save 12% ($48.75)
Our Price


FREE Shipping

  • Item 40070

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    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 MAC Performance Long Tube Headers
    • Fits 1979-1993 5.0L V8 Manual Transmission Mustangs
    Increase Exhaust Flow. Get rid of those power robbing factory catalytic converters and uncork your Mustangs hidden power with a MAC Performance Shorty Off-road Mid-Pipe. Featuring the exclusive Pro Chamber style crossover and free-flowing mandrel-bent tubing, this high performance shorty Mid Pipe in combination with MAC Performance Long Tube Headers will dramatically improve exhaust flow for more horsepower and torque.

    Aggressive Muscle Car Rumble. This free flowing shorty 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 Shorty Mid-pipe is designed to fit the 1979 to 1993 5.0L V8 Manual Mustangs, including the LX 5.0, GT and SVT Cobra models with MAC Performance long tube headers 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

    MPN# PC2593

    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: Shorty Type Headers Required: Long Tube Headers
    Piping Material: Aluminized Steel Piping Size: 2.5"
    Catalytic Converter: "No" - For off-road use only Fitment: 1979-1993 5.0 V8 Manual Mustangs
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos

    More Products You Might Like

    Questions & Answers (1)

    1 Top Rated Question

    Is this intended to work "only" with the MAC Long Tube Headers or is it intended to work with any long tube headers made for a fox body 5.0 Manual Trans Mustang? I bought this to work with HOOKER SUPER COMPETITION FULL LENGTH HEADERS and the shop is telling me it wont fit.

    • The MAC Off-Road Pro Chamber Mid Pipe is only for use with MAC Performance long tube headers.

    Helpful (1)
    Post Your Question

    Recommended For You

    Customer Reviews (4) Write a Review

    Overall Rating 3.8

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Loudness / Volume 4.25 4.3
    • Exhaust Note 5 5
    • Fit & Finish 4.25 4.3
    • Bang For Your Buck 4.75 4.8

    • 4/5

      June 16, 2018

      FYI, won't fit BBK L/T's PLEASE READ

      The MAC Pro Chamber for L/T's will not fit BBK L/T headers without fabrication. The offset and width is a bit different. You will need MAC long tubes for this Pro Chamber to fit out of the box. BBK makes a somewhat better header but that Pro Chamber sound is worth using the MAC header. I wish MAC would make a Pro Chamber to fit BBK L/T's but that wouldn't be best for business I guess.


      Year: 1989 Submodel: LX

      Helpful (14)

    • 1/5

      Installation Time: Afternoon

      March 22, 2017

      Bad Batch ?

      I Ordered a set of MAC long tube headers and this pro chamber for a Job we Did .The pro chamber Did not fit, wasnt even close so I called A/M they had no answer.I did not have time to send back for them to Figure out the Problem so we modified the Pro chamber to fit .Cut and welded back together.Never had this problem Before (bad Batch)?


      Year: 2001 Submodel: GT

      Helpful (12)

    • 5/5

      Installation Time: Less than 1 Hour

      October 16, 2015

      Well constructed.

      This was the first, but won't be the last product I buy from this site. Shipped fast and is quality made.


      Year: 1989 Indiana

      Helpful (11)

    • 5/5

      Installation Time: Less than 1 Hour

      December 20, 2013

      Awesome sound

      The prochamber is an awesome product! The sound is one of a kind and with the longtubes it's an easy install and worth every penny. I get compliments everywhere I go and I bet you will too.


      Year: 1989 Submodel: GT Keller, TX, USA

      Helpful (11)

    Related Mustang Categories