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Flowmaster American Thunder Cat-Back Exhaust (94-97 GT, Cobra)

AmericanMuscle no longer carries the Flowmaster American Thunder Cat-Back Exhaust (94-97 GT, Cobra). Please check out 1994-1998 Mustang Cat-Back Exhaust for an updated selection.

Features & Details

  • Aggressive Flowmaster Sound.
  • Super 44 Series Mufflers.
  • 2.5" Polished Stainless Steel Tips.
  • Mandrel-Bent Tubing.
  • Durable Aluminized Steel Construction.
  • Fits 1994-1997 GT and SVT Cobra Mustangs.
Flowmaster Sound .The Flowmaster American Thunder Cat-Back exhaust system with its mandrel bent tubing will improve your 1994-1997 GT or Cobra Mustangs exhaust flow for an increase in power, and their included Super 44 Series Mufflers will improve your exhausts sound for a deeper throatier muscle car exhaust note.

Quality Construction. Constructed from mandrel bent 2.5" 16 gauge aluminized steel tubing for it's corrosion resistant properties the Flowmaster American Thunder Cat-Back features Super 44 Series chambered mufflers with 2.5" diameter OEM style polished stainless steel tips for muscle car looks and sound.

Application. This Flowmaster American Thunder Cat-Back exhaust system is designed to fit the 1994-1997 GT and the 1994-1997 SVT Cobra Mustangs for both great looks and great sound. Includes hangers and all necessary hardware for installation.

Fitment: 1994 1995 1996 1997 Details

MPN# 17212

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

What's in the Box
Hardware included:
  • (2) Mufflers
  • (2) Tailpipes
  • (1) Parts Kits
  • (2) Saddle Clamps
  • (4) Hanger keepers
  • Installation instructions
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Aluminized Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 2.5"
Muffler Type: Chambered Fitment: 94-97 GT and Cobra Mustangs
Will it fit my Mustang?

    Customer Photos (11) Submit Your Photo

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      Questions & Answers (7)

      5 Top Rated Questions

      Is this compatible with the Flowmaster catted H-pipe?

      • The Flowmaster American Thunder Cat-Back Exhaust (94-97 GT, Cobra) will not be a direct bolt on with the Flowmaster Catted H-Pipe (94-95 5.0L), item # 18468, (http://www.americanmuscle.com/flowmaster-catted-hpipe-9495gt.html). The Cat-Back Exhaust features 2.5" 16 gauge tubing while the H-Pipe has a 2.25" 16 gauge tubing. These can be installed together with some modifications and welding which we recommended having done professionally.

      Helpful (1)

      How much HP can it add to a 97 GT?

      • Unfortunately cat-back exhausts generally do not increase performance. Only the overall exhaust tone of the vehicle.

      Helpful (0)

      Does this not fit the 98 mustang gt?

      • This Flowmaster American Thunder Cat-Back exhaust system is designed to fit the 1994-1997 GT and the 1994-1997 SVT Cobra Mustangs only and will not work on the 1998 models.

      Helpful (0)

      Does this not fit with the 98 mustang get?

      • This Flowmaster American Thunder Cat-Back exhaust system is designed to fit the 1994-1997 GT and the 1994-1997 SVT Cobra Mustangs only and will not fit the 1998 models.

      Helpful (0)

      Is this cat back carb legal?

      • Cat-Back exhausts such as the Flowmaster American Thunder Cat-Back generally do not effect emissions output, and are therefore not restricted under CARB regulations. However, please check all local laws before installation to verify compliance.

      Helpful (0)
      Post Your Question
      2 More Questions
      I am looking to pair this with a BBK off road H pipe on my 95 Cobra. Are there any known fitment issues? Looks to be pretty easy to install but would like to know if there are any surprises to be made aware of. 1 answer
      will this fit on a 94 gt convertible 2 answers

        Customer Reviews (47) Write a Review

        Overall Rating 4.5

        out of 5 stars

        Installation Time:Full Day

        Installation Cost:$100-$250

        • Loudness / Volume 4.324324 4.3
        • Exhaust Note 4.621622 4.6
        • Fit & Finish 4.567567 4.6
        • Bang For Your Buck 4.594594 4.6



        • 5/5

          Installation Time: Less than 1 Hour

          November 06, 2018

          Awesome exhaust

          Installed very easily with no issues sounds amazing. Really happy with the outcome.

          StevenS

          Year: 1996 Submodel: Cobra

          Helpful (3)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $100-$250

          September 22, 2018

          Flowmaster

          They are all I expected, you can heard the Ford thunder sound from the 5.0 .thank you

          JaimeF

          Year: 1994 Submodel: GT

          Helpful (3)

        • 5/5

          Installation Time: Less than 1 Hour

          August 15, 2018

          Classic Mustang Sound

          This is the best exhaust for the old 302! This catback alone is suprisingly quiet, but with an offroad mid pipe this makes the car a growling beast!

          RyanS

          Year: 1994 Submodel: GT

          Helpful (4)

        • 1/5

          Installation Time: Afternoon

          August 11, 2018

          Sounds geeat

          Exhaust tip fell off. Clamps are a poor quality. Have to bring it to an exhaust shop for proper installment.

          FrancoH

          Year: 1995 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Afternoon

          December 03, 2017

          Classic Mustang Sound

          Great looking and sounding exhaust. Fit on the mustang perfect!

          NicholasB

          Year: 1994 Submodel: GT

          Helpful (6)

        • 3/5

          Installation Time: Afternoon

          June 22, 2017

          fits nice but creates a bad exhaust drone

          fits very nicely under my 96 mustang gt but compared to a magnaflow exhaust that i had on it before this exhaust is twice as loud and sounds a little too pop-can like. it also creates a horrid exhaust drone at around 2000 rpm (highway speeds) that is super annoying. i should've stuck with magnaflow and spent the extra money.

          NickS

          Year: 1996 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Less than 1 Hour

          June 17, 2017

          Sounds Awesome!

          95 GT, Stock headers, BBK offroad H pipe, Sounds like a Mustang should. Flanges on the mufflers had to be opened a bit to fit H pipe, and unlike some others experience, had to cut off about an inch for overall fit. Shop installed about an hour. Love the way it sounds.

          JohnK

          Year: 1995 Submodel: GT

          Helpful (5)

        • 3/5

          Installation Time: Full Day

          May 03, 2017

          problems i found

          i thought it would be easy for me to install...but it was..the hangers didnt match everywhere . and the flanges werent completely shaped right...so ended up having to take to muffler shop to have tweeked.

          DalonP

          Year: 1994 Submodel: GT

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          April 17, 2017

          Sounds great

          Sound is exactly what i was looking for...... ............

          Jacob

          Year: 1995 Submodel: GT

          Helpful (9)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: 0-$100

          November 08, 2016

          BADA$$

          TOOK MY GUYS 30MIN TO PUT THESE ON AND MAKES THE CAR SOUND COMPLETELY DIFFERENT FOR BEING STOCK!

          MRJAY

          Year: 1995 Submodel: GT

          Helpful (6)

        • 4/5

          August 12, 2016

          Use band clamps

          Overall fit quality look and sound are very good. Overlap pipe lengths are to short and required band clamps to make joint

          pdc1

          Year: 1997 Submodel: Cobra

          Helpful (7)

        • 3/5

          July 17, 2016

          Great Exhaust "BUT"

          Love the Sound but when installing to my BBK H-pipe the Exhaust was about 3 inch shorter making it where I had to take it to a Exhaust shop to have them rework and add some pipe to make a it fit. over all I give this Exhaust system a 3 Star.

          Riptear

          Year: 1997 Submodel: Cobra

          Helpful (8)

        • 3/5

          July 10, 2016

          Fitment

          On my 1996 Mustang- the passenger side went well,but the driver side was a real pain.The bell on the muffler pipe wouldt fit around the ball on the cat pipe,it butted into the ball. had to use heat and ballpean hammer to open it up to get it to seal.

          Herk

          Year: 1996 Submodel: GT

          Helpful (5)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $100-$250

          June 05, 2016

          94 Mustang GT

          With the help from AM tech team I chose Thunder Catback. Got them on and they sound great. Even the wife likes the way it sounds now. Would recommend these to any Mustang owner.

          5O

          Year: 1994 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Less than 1 Hour

          May 18, 2016

          LOUD!

          These sound fantastic in my book, but the customer we built the car for deemed them too loud. Going to order the Magnaflow mufflers instead. NOTE: with a panhard bar you do not need the tailpipes so make sure and order the dump kit instead.

          180DegreeAuto

          Year: 1996 Submodel: Cobra

          Helpful (5)

        • 4/5

          Installation Time: Afternoon

          March 21, 2016

          Just right

          Classic Mustang 5.0 sound! Installed with factory cats and the sound is just right. Fitment required a little finesse, but overall went together alright. Once loosely fitted, getting it all straight was pretty easy. Jack stands and a creeper in the driveway. Just be sure to protect the tailpipes from scratches! Would recommend to anyone looking for an upgrade over stock without being to loud. You can still drive around and have a conversation with your passengers without yelling over the drone.

          95BlackVert

          Year: 1995 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Less than 1 Hour

          March 19, 2016

          Vrrrroooom

          Nice smooth Ford Mustang sound we have all come to love

          Warmachine

          Year: 1995 Submodel: Cobra

          Helpful (7)

        • 5/5

          Installation Time: Afternoon

          December 03, 2015

          Purrfect!

          Love them! It took me an afternoon to put in these and BBK cats. I replaced everything from the headers back. Perfect fit for my 95 GT! I did not want an extremely loud system and they sound perfect. Very nice low rumble that turns heads.

          NavyCop7

          Year: 1995 Submodel: GT Tampa Bay, FL

          Helpful (7)

        • 5/5

          Installation Time: Shop Install

          June 24, 2015

          Sounds awesome!!

          Had these installed along with BBK chrome shorty headers and BBK catted X-Type. All together the exhaust sounds awesome. The way a Mustang should sound. The fit looks OEM. Kind of pricey for what it is, but if you're driving a modified Mustang, you HAVE to have the sound to back it up!

          dredd

          Year: 1995 Submodel: GT Houston, TX

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          November 13, 2014

          flowmaster

          the system looks so nice and the sound is so deep. It's awesome. it is easy to install. AM's delivery is so fast.

          regie

          Year: 1996 Submodel: Cobra Germantown, MD, USA

          Helpful (5)

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