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MAC Cat-Back Exhaust (87-93 GT)

Market Price $515.23 You Save 12% ($59.28)
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  • Item 40079

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    Features & Details

    • Aggressive Muscle Car Sound
    • 2.5" Mandrel-Bent Tubing
    • 2.5" Turned Down Tips
    • Durable Aluminized Steel Construction
    • "Flow Path" Chambered Mufflers
    • Fits 1987-1993 GT Mustangs
    Aggressive Throaty Sound. Add a throaty muscle car exhaust note to your 5.0L GT and improve the exhaust flow at the same time with a MAC Performance Cat-Back exhaust system from AmericanMuscle.

    Flow Path Mufflers. MAC Flow Path Chambered Mufflers feature a patented multi passage design, following Helmholtz's Theory of Tone, to produce a muffler that effectively flows exiting exhaust gases all while maintaining a desirable tone. With no packing that can burn out, Flow Path Mufflers will sound the same mile after mile, year after year.

    High Quality Construction. Mandrel bent from durable 2.5" aluminized steel tubing for strength and corrosion resistance, this MAC Performance Cat-Back features two "Flow Path" chambered mufflers with turn down tips to match the original factory GT appearance.

    Application. This MAC Performance Cat-Back exhaust system is specifically designed to fit the 1987-1993 5.0L GT Mustangs.

    Fitment: 1987 1988 1989 1990 1991 1992 1993 Details

    MPN# TK8725

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Muffler assemblies
    • (2) Over axle pipes
    • (2) Exhaust Tips
    • Installation hardware
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: Aluminized Steel Tip Material : Aluminized Steel
    Piping Size: 2.5" Tip Size: 2.5"
    Muffler Type: Chambered Fitment: 1987-1993 GT
    Will it fit my Mustang?

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    Customer Reviews (14) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.230769 4.2
    • Exhaust Note 4.538462 4.5
    • Fit & Finish 4.461538 4.5
    • Bang For Your Buck 4.538462 4.5

    • 4/5

      Installation Time: Afternoon

      April 21, 2018

      Mac cat back

      Love it great sound little hard to install But not bad


      Year: 1987 Submodel: GT

      Helpful (5)

    • 4/5

      Installation Time: Afternoon

      September 23, 2017

      Settling in...

      Install was a little tricky. Nothing indicates if two mid-pipes must go on certain sides, and no directions. They appear to be same shape. Take your time making sure the system clear all objects. Going from stock 2.25" to 2.5" makes spacing tighter. End tips did not turn out even on both sides, and mufflers ended up slightly cocked. Be prepared for the drone sound for long trips, even in 5th gear.


      Year: 1993 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      June 23, 2017


      I installed the cat back on my 89 gt . It was easy for the most part but it would of gone faster if there were instructions from the manufacture or even the pipes are marked for which side. The only thing that i notice is from the mid pipe to mufflers the bolts were hard tighten with a socket driver, if they were going the other direction it would help. Beside that I very pleased with install and sound.


      Year: 1989 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      June 18, 2017


      I loved the FlowMaster American Thunder until I bolted in the MAC. My car makes 302rwhp/328rwtq with a lumpy cam. Sounds nasty at idle and awesome at WOT. The exhaust is well designed with ball fittings. It fit like a glove even with 275/40's on 10 inch wheels. They take the time to even brush rust inhibitor on the welds. MAC knows the 5.0. The FlowMaster is a great choice but the MAC fits so much better and sounds way better at idle. MAC #1!!


      Year: 1992 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      March 13, 2017

      Great exhaust system

      Easy to put on and adjust, Like that nothing has to be welded


      Year: 1987 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Less than 1 Hour

      October 22, 2016


      i pulled out my old flowmasters and replaced them with the mac catback exhaust system. The mac sounds wayy better than the flowmasters!! 100 would recommend!!


      Year: 1992 Submodel: GT

      Helpful (7)

    • 5/5

      September 04, 2016

      MAC Flowpath Exhaust

      Installed on 92 GT along with a MAC H-Pipe. Removed complete factory system. Loved the ball and socket connections which allow great adjustability and ease to remove when necessary. Mufflers tucked up nice and high and aligned with hangers perfectly. Sound - slightly deeper at idle " quieter then Flowmasters I have used" and come alive at wide open throttle, similar to Fowmaster Force Ii system. Love it, not to abnoxius but aggressive under full throttle.


      Year: 1992 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      June 05, 2016


      I really like this over the flow masters it still has that awesome muscle car sound without the really high pitch rasp at high rpm good quality kit fit really nice


      Year: 1990 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      March 25, 2016

      very nice exhaust

      Easy installation. Sounds good with my bbk equal length shortly headers and my bbk off road x pipe. Very crisp and loud when you stab into it. Good deal for the price..


      Year: 1988 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      February 16, 2016

      Love the macs

      My setup: bbk shorty headers, bbk carted h-pipe. These are perfect for a daily driver, not too loud by any means. Did it on my back in 2 hours with beer breaks. Great tone and I've had them all. I'm on my 4th fox body, I usually run flowmaster 40 series but decided to try this instead and I'm glad I did


      Year: 1992 Submodel: GT South jersey

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      August 30, 2013

      Mac cat back exhaust for 1988 Mustang GT convertible

      This system is very well made. Installation was quick and easy. The loudness and tone are perfect.


      Year: 1988 Submodel: GT East Syracuse, NY, USA

      Helpful (7)

    • 4/5

      Installation Time: Afternoon

      August 26, 2013

      Not too loud. Nice throaty sound

      This exhuast is the right balance between loudness and aggressive sound. It's not near as loud as the Flowmasters I've had before, yet it's loud and throaty when you get on it. I bolted this system onto my Bassani catted X-pipe and everything fit together nicely. The installation hardware provided makes for a very easy install. Would defintely recommend this exhaust system to anybody interested!


      Year: 1990 Submodel: GT Carroll, OH

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      March 15, 2013

      awesome sound

      Excellent sound could not be happier. no drone sound fits and looks great not overly loud just right a must have.


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

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      December 08, 2012

      Couldn't be happier!

      Had this cat back installed this morning and I honestly couldn't be happier! Sounds amazing at idle and when you're just cruising! Nice and loud.


      Year: 1988 Submodel: GT Indiana

      Helpful (11)

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