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Bassani Cat-Back Exhaust (99-04 GT, Mach 1)

AmericanMuscle no longer carries the Bassani Cat-Back Exhaust (99-04 GT, Mach 1). Please check out 1999-2004 Mustang Cat-Back Exhaust for an updated selection.

Features & Details

  • Aggressive Exhaust Sound.
  • Performance Mufflers & Stainless Tips.
  • Durable Stainless Steel.
  • Lifetime Warranty.
  • Fits 99-04 GT, 01 Bullitt 03-04 Mach 1 Mustangs.
Aggressive Exhaust Note. Bassani's Cat-Back exhaust system with it's chambered performance mufflers will give your 1999-2004 GT or Mach 1 Mustang a more aggressive exhaust note, than that of the stock GT.

Looks and Performance. This Cat Back exhaust from Bassani features 4X8 performance mufflers that end with a 3.5" rolled edge slash cut polished stainless tip that exit in the stock location for great looks and an increase in power.

Lifetime Warranty. The Bassani Cat-Back is precision-engineered from resilient stainless steel for long lasting durability and is backed by Bassani's Lifetime Warranty.

Fitment. This Axle-Back exhaust system will fit the 1999-2004 GT and the 2003-2004 Mach 1 Mustangs for great looks and great sound.

Fitment: Details

MPN# 46995S

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

What's in the Box
  • (2) Muffler assemblies/li>
  • (2) Over axle pipes
  • (2) Exhaust Tips
  • (4) Clamps
  • (4) Bolts
  • (4) Washers
  • (4) Nuts
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Chambered Fitment: 99-04 GT / Mach 1 / Bullitt Mustangs
Will it fit my Mustang?

    Customer Photos (8) Submit Your Photo

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      Questions & Answers (4)

      4 Top Rated Questions

      Can I use this along with a x-pipe on my v6? Can this fatback exhaust work with a X-pipe designed for a v6? Will there be any problems with the height of the tips under the rear bumper? I don't want to be cheap when I upgrade my exhaust. I also plan on changing into new shorty headers as well.

      • Yes you can!

      Helpful (2)

      Can I install this on a 99-04 V6?

      • This Axle-Back exhaust system is designed to fit the 1999-2004 GT and the 2003-2004 Mach 1 Mustangs.

      Helpful (0)

      Will this fit well with BBK long tube headers and a BBK offroad X pipe?

      • Yes No problem. They replace the cat back you have now. Sound is awesome!!!!!!

      Helpful (0)

      will this exhaust system increase hp and gas mileage I want to increase hp and would like to know the best way to accomplish this. I was considering a chip but don't know if they really work Thanks for your reply

      • up to 5HP gas mileage prob not because it will be louder and you will drive faster because it sounds cool causing you to burn more gas

      Helpful (0) Show 2 more answers
      Post Your Question

        Customer Reviews (32) Write a Review

        Overall Rating 4.8

        out of 5 stars

        Installation Time:Afternoon

        Installation Cost:$500-$1000

        • Loudness / Volume 4.173913 4.2
        • Exhaust Note 4.913043 4.9
        • Fit & Finish 4.521739 4.5
        • Bang For Your Buck 4.304348 4.3



        • 5/5

          Installation Time: Full Day

          December 23, 2018

          Sounds beautiful bassani CB O/R H-pipe 04 Mach 1

          I love you catback, paired to a mrt o/r h pipe on my Mach 1 and it's simply sounds awesome, no drone no rasp just the sound of america coming from the tailpipes. Beyond happy with purchase

          Pablo

          Year: 2004 Submodel: Mach 1

          Helpful (2)

        • 5/5

          Installation Time: Afternoon

          December 10, 2018

          Best sounding cat back!!!

          It cost more than others but definitely worth it! The sounds is really good, and the quality is really nice as well.

          KevinE

          Year: 2001 Submodel: GT

          Helpful (2)

        • 5/5

          Installation Time: Afternoon

          December 05, 2018

          Bassani Cat-Back

          Great exhaust. Fairly easy install and it sounds great!

          LarryR

          Year: 2004 Submodel: Mach 1

          Helpful (2)

        • 5/5

          Installation Time: Afternoon

          November 01, 2018

          BEAUTIFUL SOUNDING SEXINESS

          All stainless, perfect fit, with the O/r h pipe it sounds like heaven on Earth, BITE THE BULLET AND SPEND THE EXTRA MONEY, its worth it more than you can imagine. 04 Mach 1 w/ h pipe= 15/10 on sound

          ThomasP

          Year: 2004 Submodel: Mach 1

          Helpful (3)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $500-$1000

          May 28, 2018

          vroom vroom

          This was purchased for my wife with BBK headers and X-pipe, when she started it I became her hero, Happy wife, happy life, thanks AM.

          Hogyman

          Year: 2002 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Afternoon

          January 07, 2018

          Quality

          The fit and finish is great. I really like the sound,not to loud.can't wait to get on the road. American has been a great company to deal with so far.

          JeffM

          Year: 2001 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Afternoon

          September 02, 2017

          Amazing

          Deep throaty rumble that just sounds awesome. Definitely should take out the baffles

          JoshR

          Year: 2002 Submodel: GT

          Helpful (4)

        • 2/5

          Installation Time: Full Day

          July 25, 2017

          Did not fit, required cutting

          This exhaust didn't fit correctly. I cut off the old exhaust because it was easier, not expecting this very expensive Bassani to not fit correctly. It was too long, about 2.5 inches on the left and 2 on the right. Kind of sad it was off and not even on both sides. American Muscle asked for pictures and made the return a hassle. Ground shipment back to the east coast from California and waiting for a new part would have had me driving an car with no mufflers for a couple weeks. I will never buy an exhaust system from AM again, beware this does not fit without modification in some cases. Other than the poor fit and lame customer service, the exhaust does sound great.

          Dan

          Year: 2004 Submodel: Mach 1

          Helpful (6)

        • 4/5

          Installation Time: Weekend

          June 12, 2017

          Bassani Exhaust for Mach 1

          Sounds great. Took out resonators in the tips a few days after installing the exhaust. Also, when installing the exhaust I tried using an electric impacted drill. I had to use a pneumatic impact gun to tighten the clamps. Makes sense but, yeah that was the only problem I made.

          Annalyce

          Year: 2004 Submodel: Mach 1

          Helpful (4)

        • 3/5

          Installation Time: Less than 1 Hour

          April 26, 2017

          Clamps

          Sound is great clamps wouldnt tighten the pipes all the way.

          DavidJ

          Year: 2003 Submodel: Mach 1

          Helpful (4)

        • 5/5

          Installation Time: Shop Install

          February 01, 2017

          17 years without any trouble...

          June of 2000 I bought my first and only brand new car: My Ford Mustang GT 'vert. 3 days later ordered the Bassani X pipe (legal) and this cat-back. When they say they're engineered to last, they are not kidding. 17 years and no rust anywhere I or my mechanic can see. And the sound of the system is just awesome. No raspy empty noise, no drone at highway, etc. A nice deep bass rumble and (at least in my ride) a nice burble-burble-burble on decel in gear. It does not need to all-out thunder roar all the time - it gets it's point across at the stoplight just fine with that bass rumble. I had it all installed together, I expect most of the sound improvement is the cat-back but the X, I'm told, changes the sound somewhat also as it's flowing differently, etc. Last word? BUY WITH CONFIDENCE! -JD

          Fensty

          Year: 2000 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Afternoon

          June 22, 2016

          Best Exhaust

          WOW I've heard flowmaster and magnaflow on mustangs but bassani beats then all not too loud and not to quiet when your going you hear that exhaust you feel more top end on your car

          jess2002

          Year: 2002 Submodel: GT

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          December 15, 2015

          The best out there

          I've had a few bassani products in the past. They make a great quality product with a deep and aggressive sound to back it up. Also made a great power upgrade to my 2003 gt. It's worth the extra money. Bassani all the way!

          242urban

          Year: 2003 Submodel: GT Marshfield,Wi

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          August 31, 2015

          Great tone with no drone, just tuned

          I spent a long time looking for the right catback for my daily driver and narrowed it down to this and the stingers. Don't get me wrong all of the exhaust companies are unique but this catback is the least that I have heard and I really just wanted to be different and not eventually get annoyed. Installed over a week ago and about 500 miles later and I still love it. At this point on I only want basset exhaust products. Thank bassani for their work and thank AM for being able to provide such a great product on the east coast

          Liljose29

          Year: 2004 Submodel: GT NJ

          Helpful (8)

        • 5/5

          Installation Time: Full Day

          June 12, 2014

          utter SWEETNESS

          I'm so happy I bought Bassani!! I absoutley love them!!! They sound so nice! Still have to burn them out but I'm going to be putting headers on so it will sound so sweet! Installation was a pain but well worth it!!

          Kim4

          Year: 2003 Submodel: GT Minnesota

          Helpful (6)

        • 4/5

          Installation Time: Less than 1 Hour

          October 24, 2013

          Great Product

          I installed this catback at the same time I did the Kooks header and x pipe install. I had to ding my set up that I got for a couple of reasons. I know Bassani is a quality brand and everything looked good upon opening the box for the first time. Not a big issue getting this lined up, but working on a garage floor, on your back doesn't help. My main issue is that the clamps did not secure the pipes where they connected. We'd get them lined up, slide them in, tighten the clamps, and it would move. A lot. Even the mufflers we couldn't get straight and I had a couple of days of scraping going over some unavoidable bumps. And the tips wouldn't stay in place either. I took it to a shop here that specialize in exhaust systems and even he couldn't get the system to stay tight. He had to make a couple of small welds to keep everything sturdy and together. The exhaust was initially quiet and I had the "silencers" removed and it was noticeably louder. Even with the long tubes and x pipe it's not raspy or extremely loud. I hoped for louder, but I am pleased with the overall sound.

          AaronO

          Year: 2002 Submodel: GT Newmarket, Suffolk CB8, UK

          Helpful (5)

        • 4/5

          Installation Time: Full Day

          September 04, 2013

          Smooth sounding exhaust...

          Great exhaust. I love the exhaust note, it is very smooth, no rattle. Really nice product, I found the install was pretty easy, even by myself in the garage with a pair of floor jacks. It did take me a while to do the full install, but I found removing the old exhaust on my '02 with 220 000 kms was the most time consuming. Install wasn't too bad, it just took me a few attempts to get the alignment of the mufflers and tips just right. I would definitely buy this product again and recommend it to anyone who wants a smooth "neighborhood friendly" exhaust, it sounds great in 2nd gear around 2000-3000 rpm with the top down!

          SimonR

          Year: 2002 Submodel: GT Pain Court, Ontario, Canada

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          May 01, 2013

          wow

          Awesome exhaust note!!! First mod that i did, and I got a lot of compliments!! My dad went out and got it for his 03 right afterwards! Highly recommend. Louder than stock, but not obnoxious. I cannot say enough about the exhaust note, really sounds great!

          Charnis

          Year: 1994 Submodel: Cobra

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          February 04, 2013

          Very impressed!!

          I researched many different exhaust companies when choosing my catback. I wanted a catback that was stainless steel, aggressive sounding without being obnaxious. This Bassani catback is the perfect blend of a straight thru design, with a chambered muffler style sound. I have been a flowmaster user in the past, but now will never go back! Bassani A++

          Jordieflex

          Year: 2003 Submodel: Mach 1 Crockett, CA, USA

          Helpful (3)

        • 5/5

          Installation Time: Less than 1 Hour

          October 14, 2012

          GREAT FEATURES

          EASY TO INSTALL GREAT SOUND AND LOOKS I RECOMMEND THIS SYSTEM. DONALD ROSE

          WILEY

          Year: 2003 Submodel: Mach 1 Senatobia, MS, USA

          Helpful (5)

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