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MAC Aluminized Steel Cat-Back Exhaust w/ Rolled Tips (96-04 GT; 03-04 Mach 1)

Market Price $512.85 You Save 13% ($66.90)
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  • Item 40047
  • MPN# TK9635

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Features & Details

  • Aggressive Muscle Car Sound
  • 3.5" Polished Stainless Steel Tips
  • 2.5" Mandrel-Bent Tubing
  • Durable Aluminized Steel Construction
  • "Flow Path" Chambered Mufflers
  • Fits 1996-2004 GT, Mach 1, and Bullitt Mustangs
Aggressive Throaty Sound. Add a throaty muscle car exhaust note to your 4.6L 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 massive 3.5" diameter polished stainless steel tips for classic muscle car looks and sound.

Application. This MAC Performance Cat-Back exhaust system is specifically designed to fit the 1996-2004 GT, 2001 Bullitt, and 2003-2004 Mach 1 Mustangs. This system will not fit the SVT Cobra Mustangs.

Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (2) Muffler assemblies
  • (2) Over axle pipes
  • (2) Exhaust Tips
  • (2) Clamps
  • (4) Hangers
  • (8) Thread rods
  • (8) Nuts
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Aluminized Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Chambered Fitment: 1996-2004 GT, Bullitt and Mach 1 Mustangs
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04

Fits GT, Mach 1, and Bullitt

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Most Helpful Reviews

V6 Turning heads!

I installed the Mac Catback on my 2002 V6 yesterday, and the difference is day/night. It fits well, though some modifications had to be made. The chrome tips really add flare to the rear end of the car. ...

Read More
Helpful (7)

MAC Catback

Decided to install this catback after installing an o/r h in front of my SLP LM2's. It was way too loud and sounded like a motorcycle above 2k rpm's. Going with a chambered muffler was the right decision. ...

Read More
Helpful (6)

Overall Rating 4.4 out of 5 stars
Read All 45 Reviews

Customer Photos (14) Submit Your Photo

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7 Questions / 6 Answers

Ask a Question

True Dual for v6 I have an 03 v6. If I get the bbk shorty headers as well as the Pace Setter v6 dual exhaust adapter kit. and this mac catback. I should have everything and be ok?


  • The MAC Cat-Back Exhaust (96-04 GT, Mach 1) and the PaceSetter V6 Dual Exhaust Adapter Kit (99-04 V6) (Item #51063) are most certainly compatible. In fact, with that dual exhaust adapter, any GT catback will now work for your V6. On top of this, the dual exhaust adapter is designed to work with the stock manifold, and the BBK Ceramic Shorty Headers (99-04 V6) (Item #56099) is designed to work with the factory mid pipe; therefor these two products will work with each other!


Helpful (1)

Will this Mac catback exhaust fit a 1996 mustang cobra?


  • This MAC Performance Cat-Back exhaust system is specifically designed to fit the 1996-2004 GT, 2001 Bullitt, and 2003-2004 Mach 1 Mustangs. This system will not fit the SVT Cobra Mustangs.


Helpful (0)

Will this Mac catback fit a 1996 Cobra???


  • This MAC Performance Cat-Back exhaust system is specifically designed to fit the 1996-2004 GT, 2001 Bullitt, and 2003-2004 Mach 1 Mustangs. This system will not fit the SVT Cobra Mustangs.


Helpful (0)

Have the mac long tubes and h for 99 v6 will this hook up to it?


  • This cat-back will work with the long tube headers and the h-pipe.


Helpful (0)

I have Pacesetter Long Tubes with the off-road x-pipe would this catback connect to the x-pipe?


  • The PaceSetter Offroad X-Pipe (96-04 GT w/ Long Tube Headers) item #51060 ( flanges will line up with the MAC Cat-Back Exhaust (96-04 GT, Mach 1) flanges. The pipes are also the same size at 2.5" so these will be a good fit!


Helpful (0)

Would these fit my v6 with pypes orx? I have a 2001 v6 with a pypes off road x pipe. Would these fit. Also what kind of gains could I be looking at, only mod is a CAI.


  • This MAC Cat-Back Exhaust (96-04 GT, Mach 1) will fit your Pypes Off Road X-Pipe.


Helpful (0)

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Customer Reviews (45) Write a Review

Overall Rating 4.4

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.083333 4.1
  • Exhaust Note 4.638889 4.6
  • Fit & Finish 3.888889 3.9
  • Bang For Your Buck 4.5 4.5

  • 5/5

    Installation Time: Afternoon

    May 07, 2012

    V6 Turning heads!

    I installed the Mac Catback on my 2002 V6 yesterday, and the difference is day/night. It fits well, though some modifications had to be made. The chrome tips really add flare to the rear end of the car. The sound is GREAT, for a V6 my car sounds very aggressive with this system, heads have been turning all day. Warm idle is quiet, but step on the gas and you will be noticed! If you are looking to upgrade the exhaust on your V6, i would highly recommend this system. It will not let you down!


    Year: 2002 Submodel: V6 Lockport, IL, USA

    Helpful (7)

  • 5/5

    August 08, 2011

    MAC Catback

    Decided to install this catback after installing an o/r h in front of my SLP LM2's. It was way too loud and sounded like a motorcycle above 2k rpm's. Going with a chambered muffler was the right decision. The sound of this catback and an o/r h is truly unbelievable. It has a really deep, rich tone to it. It's loud enough to turn heads, but still quiet enough to keep you out of trouble with the police. I get compliments on the sound whenever I go out now. The 3.5" tips are rolled and angle cut and they look great coming out of the rear. They're the right size for the cutouts in the bumper so it doesn't look like you have straws coming out of your back end. The only tough part about installation was that the mufflers hang right underneath and very close to the bolts for the hangers. Otherwise, everything else is great about these catbacks and I'd highly recommend them to anyone.

    Robert Klein

    Year: 2001 Submodel: GT

    Helpful (6)

  • 4/5

    May 13, 2011

    Best Sounding Catback. Period.

    This is hands down the best sounding catback there is for a 2v mustang. Plus its cheap and it makes power, its hard to beat this combo. I have had this catback for almost 7 years and its fantastic.


    Year: 2002 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    February 24, 2012

    Aggressive Throaty Sound

    I spent about 4 moths looking at different exhaust. I did not want something that was gona have cops on me every day being that i live in houston tx and i wanted it to be deep and aggressive .I cheked over 50 videos and sound clips on the net and this was the perfect exhaust. It goes perfect with the 4.6L .. IF YOU WANT A DEEP RUMBLE AND AGGRESSIVE SOUND .. this is what you want .


    Year: 1996 Submodel: GT Houston, Tx

    Helpful (5)

  • 4/5

    January 23, 2012

    Not for the faint of heart..

    Love the sound this catback produces, although the installation was/ is the biggest headache I have ever had with my car. I say was/ is because still to this day, after 2 months of having it on my car I am still trying to get the alignment right and to get the rattles to stop.


    Year: 2000 Submodel: GT Houston

    Helpful (5)

  • 4/5

    Installation Time: Less than 1 Hour

    August 27, 2011

    Oh boy

    jus bought this catback to replace my flowmaster because it was too quiet, this exhaust coupled with my bassani catted xpipe sounds incrdible, this exhaust is loud but it doesnt drone at all, only problem is it hangs very low, my car is lowered on h&r ss springs though, otherwise turns heads everywhere and would definitely reccomend


    Year: 2000 Submodel: GT

    Helpful (4)

  • 5/5

    July 05, 2011

    terrible fitment

    very nice product sounds amazing with my o/r X pipe. Then you get to the fitment I have had nothing but troubles with it rubbing creaking and popping. I have been fighting with it for a month in rubbing over the axle now i have to resort to a shop putting hands on my car to see if they can get it to fit.


    Year: 1996 Submodel: GT

    Helpful (4)

  • 5/5

    May 31, 2011

    great product

    This Mac catback is amazing.The sound is deep and has a very nice rumble. It is loud but it does not drone at cruising speeds. I love this exhaust and I would buy this product again.


    Year: 2003 Submodel: GT

    Helpful (4)

  • 5/5

    May 10, 2011


    Installed with a H-PIPE ... OMG. Heads turn and turn and turn some more when I drive by ... I LOVE IT!


    Year: 1997 Submodel: GT

    Helpful (4)

  • 4/5

    July 27, 2016

    Sounds Amazing!

    I have an '01 v6. I paired this catback with the Mac o/r h pipe. It sounds just awesome on a sixxer! Very difficult exhaust to install and get aligned correctly. It hits the passenger side rear axel. It also hangs very low and my car is already lowered 2" on HandR ss. the clamps that come with it suck too. No matter how much you tighten the tips, you can still shake them side to side. I had to have them tack welded. Really not sure if I would reccommend this catback. It's almost like it's too long for my car or something. The hangers on the mufflers are stretched towards the back of the car too.


    Year: 2001 Submodel: V6

    Helpful (3)

  • 3/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    February 26, 2016

    Deep rumble, but not that loud

    Ok, Let me start by saying I've owned three mustangs, all with different exhausts(Ford Racing, Flowmaster and Pypes)so I know what a good set up is supposed to sound like. I had a shop install this one for me. These guys are good at what they do and they did a great job. They STILL had issues getting it fitted correctly. Some parts were loose, some were too tight. They had to spot-weld the tips in place so they wouldn't move on their own. After all that It cost me $200 for the install. That's not too bad. The sound is nice, very much a traditional Mustang voice.I have a factory H pipe and still have the cats in place. It's not as loud as the old Flowmaster 40's I replaced(one muffler had a hole in it) but it's richer, deeper and more noticeable at idle. More Bass and not as tinny as the Flo's. the sound has character in spades. The only thing I don't like is that it seems to amplify the sound of the mechanics in the engine. I swear I hear valves tapping when I stand behind the the tail pipes. (a crisp popping sound, almost like a crackle). I will say that if you're looking to cam your engine, this is the exhaust you want. It would sound amazing with a mild cam installed. There is little to no drone over 2500 RPM. I can actually hear passengers in the car now. The old flo's would drown out everything. the 3.5" pipes look tough hanging below the bumper. Very big and chunky. Much better than the old school 2" chrome straws I had before. I'm hoping the crackel will work it's self out over time and is just part of the break in. Maybe I'll just cam the engine and not worry about it. I was expecting more volume from this setup and that's kind of a let down. I'm thinking of adding long tube headers and maybe an off-road H pipe to get it louder. All in all it's a nice set up and a good value once you get past the fitment issues. I wanted a unique sound and that's what I got. Now I just need to make it louder!


    Year: 1998 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    October 07, 2017

    Fantastic Catback - But Thing to Note

    This is the second time installing this catback exhaust. The first one was hacked up to install Super 44's. It was then rehacked to weld in a set of used Flowpaths so it was looking rough. That was 7 years ago. I repurchased this exhaust because I love the sound these mufflers create. They sound amazing with an O/R H and stock manifolds, but I have the new catback now paired up with BBK long tubes and a BBK O/R H which made the exhaust a lot louder. There is a few things to note: -Some people say these mufflers are too quiet - and they are at first. I don't know if heat cycles do it or carbon build up does it, but they will get louder over time. They are a cross between a Flowmaster and Magnaflow sound. Clean and crisp with a bass to it. I love the sound and the idle on these sound mean. -The clamps that come with this kit to fit on the tips are horrible. Plan on getting clamps similar to what the Magnaflow kit provides. On both kits I had to ditch the stock clamps because they are so cheap and flimsy that they break either under too much torque tightening or vibration over time. -The fit on this kit isn't the best. It will take some persuading to get it on right but when you do, it fits high and tight. Keep in mind I'm comparing this to Magnaflow and Borla Stinger catbacks I've had in the past so you can see the cost difference versus quality. All in all - I love the sound of these mufflers. The tips add a nice touch as when you look behind the rear tires the tips are long enough that you see a nice stainless steel tip. I posted a picture of my set up with the passenger side tip not installed yet from under the car. Give these babies some time to break in and you'll love the sound. They flow great as well for a chambered muffler. Do you homework on mufflers where guys did real life tests at the track and on dynos. This even outflows the standard Magnaflow muffler.


    Year: 2001 Submodel: GT

    Helpful (1)

  • 3/5

    Installation Time: Afternoon

    February 03, 2017

    MAC catback for 98 gt

    I love MAC, but I have to say this fit horrible. The sound is awesome deep and throaty. I paired this kit with a UPR off road X pipe on an automatic 98 gt. Sound is incredible and eliminates the rasp of the X which I don't mind. But the fitment is horrible. No real pics and its a pain in the butt with all the connections. If you buy this you'll love it , but you would be smart to do it with someone and with a lift. A lot of the clearances were super tight. The flow tubes are not welded in which makes that a pain . I think if MAC would weld the flow tubes to the mufflers that would make this a lot easier. My car has74xxx miles on it so its not super worn out underneath. Overall I like this kit, but the fitment could be better. THE SOUND IS AMAZING!!!


    Year: 1998 Submodel: GT

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    January 18, 2017

    Lower deeper rumble

    Hooked up great. I had flow masters 40's . They was to raspy and loud. Took me approximately 2.0 hours to install. Sounds really good under a load. And at W.O.T. ...


    Year: 2004 Submodel: GT

    Helpful (1)

  • 5/5

    August 22, 2016

    Cat-Back exhaust, 04 Mach 1

    Install on the Mac cat-back went great, I had allready installed a Mac Pro Chamber off road mid-pipe and I could not be happier with the sound. The volume level inside the car is higher but what a sweet sound it is!


    Year: 2004 Submodel: Mach 1

    Helpful (1)

  • 2/5

    August 16, 2016

    Sounds good

    I like the sound wish it was a little louder but it does sound good with o/r x pipe. I had fitment issues I has to shorten my x pipe 1.5 inch's to keep the tailpipes from hitting the differential if I had to do over I would buy slp or flow master the Mac has a lot of connections that are aggravating


    Year: 2000 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    April 17, 2016

    Perfect Fit, Sound Awesome!!

    Bought this exhaust for my 1996 Cobra and it fit perfect. Install is simple and lots of adjustment with this kit to clear everything as needed. I was concerned with the tailpipes clearing my 315 rears but it was not an issue. Car is lowered and nothing hits anywhere. Sounds awesome connected to my O/R pipe. If your thinking of getting this exhaust go for it. Took about 2 hours to install.


    Year: 1996 Submodel: Cobra

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    March 02, 2016

    MAC Catback Exhaust

    I had this system fitted together with a set of BBK shorty headers, and a Pypes catted X pipe to my 2004 V6 convertible. The difference is incredible. It sounds great, looks great, and is much more lively. This is the way a V6 Mustang should sound! I definitely recommend using the Pypes exhaust hanger kit, and the 02 sensor extensions. These two parts greatly simplify the installation. I had a garage fit the parts, as I was unable to get my car high enough to do the job. With a hoist, a person could tackle this task, as all the parts were a good fit, and simply bolted right on


    Year: 2004 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    October 23, 2015

    MAC gives my Mustang GT (M)agnificent (A)merican (C)haracteristics !!

    As soon as I got these exhaust installed and drove it down the road , I was smiling from ear to ear. These exhaust just has the right tone and muscle car rumble that brings the best out out the 4.6L engine. I couldn't be any more happier. Thank You American Muscle for your product and service !


    Year: 2004 Submodel: GT Swainsboro, GA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    January 27, 2012

    Mac exhaust

    I have v6 with true duel exhaust. So where the hanger spots were located were off. I had to get factory hangers off Gt from junkyard. The pipes have little room over axel and near underbody. And the clamps for exhaust tips broke in a week. Other than that it sounds and looks good... order parts from here is addictive....


    Year: 2000 Submodel: V6 ohio

    Helpful (1)

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