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Flowmaster American Thunder Cat-Back Exhaust w/ Polished Tips (87-93 LX; 1986 GT)

Market Price $533.99 You Save 13% ($70.02)
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$463.97

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  • Item 18407
  • MPN# 17213

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    Features & Details

    • Aggressive Flowmaster Sound
    • Super 44 Series Mufflers
    • Mandrel-Bent Tubing
    • Durable Aluminized Steel Construction
    • 2.5" Polished Stainless Steel Tips
    • Fits 1987-1993 LX and 1986 GT Mustangs
    Flowmaster Sound. The Flowmaster American Thunder Cat-Back exhaust system with its mandrel bent tubing will improve your 1987-1993 LX or 1986 GT Mustangs exhaust flow for an increase in power. Their included Super 44 Series Mufflers with attached hangers 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 catback features Super 44 Series chambered mufflers with 25" Long by 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 1987-1993 LX and the 1986 GT Mustangs for both great looks and great sound.

    Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 Details

    What's in the Box
    Hardware included:
    • (2) Clamps, Attached Hangers
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: Aluminized Steel Tip Material : Polished Stainless Steel
    Piping Size: 2.5" Tip Size: 25"L x 2.5" diameter
    Muffler Type: Chambered Fitment: 87-93 LX and 86 GT Mustangs
    Will it fit my Mustang?
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Other - 86

    Fits 1986 GT and 1987-1993 LX Mustangs

    Most Helpful Reviews

    5/5
    Awesome!!!!

    I just installed this system on my '86 GT convertible. It is the perfect sound! Loud but not obnoxiously loud. It only took a few minutes to install at my local shop and they look great too. Shipping ...

    Read More
    Helpful (19)

    5/5
    The classic musclecar sound i was missing

    This exhaust came really well packaged nice and shiny took about 30 minutes to install really easy and the sound is amazing my last ones where blown out like a tin can it was time to change them and now ...

    Read More
    Helpful (2)

    Overall Rating 4.7 out of 5 stars
    Read All 19 Reviews

    Customer Photos (10) Submit Your Photo

    View All 10 Photos

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    4 Questions / 6 Answers

    Ask a Question

    Will this fit on a 1993 Mustang LX 2.3?

    Officer

    • Hello! The Flowmaster American Thunder Cat-Back Exhaust will only fit on a V8 LX

      VincentV

    Helpful (0)

    Fitment question Will this catback kit mate up with the bbk catted h pipe and stock headers on my 89 Lx 5.0 ??

    PonyBoy415

    • Yes it will, direct bolt on.

      Mean92347

    Helpful (0)

    will this fit an lx shorty catted x pipe?

    temper

    • if u have long tube headers into that shorty xpipe then yes this should fit on ur stang

      natmill64

    Show 1 more answer Helpful (0)

    Is the word Flowmaster etched on the stainless tips? I was just wondering if there is an option to have the polished tips with or without the etching. Thanks.

    Tomicino

    • We only have this exhaust available with the Flowmaster etched along the side of the tips. Hope this helps!

      LisaS

    Show 1 more answer Helpful (0)

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    Customer Reviews (19) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Afternoon

    • Loudness / Volume 4.222222 4.2
    • Exhaust Note 4.777778 4.8
    • Fit & Finish 4.388889 4.4
    • Bang For Your Buck 4.555555 4.6



    • 5/5

      August 04, 2009

      Awesome!!!!

      I just installed this system on my '86 GT convertible. It is the perfect sound! Loud but not obnoxiously loud. It only took a few minutes to install at my local shop and they look great too. Shipping was very quick to Connecticut (next day) for no extra charge. Buy these pipes!

      Frank

      Year: 1986 Submodel: GT

      Helpful (19)

    • 5/5

      Installation Time: Less than 1 Hour

      October 14, 2016

      The classic musclecar sound i was missing

      This exhaust came really well packaged nice and shiny took about 30 minutes to install really easy and the sound is amazing my last ones where blown out like a tin can it was time to change them and now its less louder but the sound quality is at its finest. I live in canada and it took a week to get here pretty fast. Only think the passenger side muffler is vibrating against the frame a little self initiative help fixed the problem.

      93supercharged

      Year: 1993 Submodel: Other

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      January 16, 2012

      great features

      the exhasut sounds great and was installed easly its a great product

      stephenlx

      Year: 1990 Submodel: GT oak hill,wv

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      November 23, 2016

      Awesome!!!!

      Gives the true 90's mustang sound. I would have given it 5 stars but if your running anything over a 275 rear tire everything gets real cramped but other wise very happy with the polished tips. I would also get this system welded.

      John

      Year: 1989 Submodel: Other

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 12, 2016

      American thunder car back

      I installed the American thunder 2 1/2 cat back exhaust in about two hours. The product went together great , but had to put a small weld around the tail pipe because of exhaust leak. I wanted the iconic fox body sound and I got it.

      Cbird

      Year: 1990 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Less than 1 Hour

      April 20, 2016

      Fit great

      Great sound, easy to install. Only complaint was cheesy exhaust clamps, broke one and smashed my knuckles. One muffler had a slight dent, but I'm not picky.

      Copstang

      Year: 1992 Submodel: Other

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      April 03, 2016

      Excellent sound

      Fit and finish excellent.Took a little tweaking to line but lined up perfectly. recommend installing band clamps instead of the supplied clamps for a cleaner finish . Along with a set of BBK shorty headers and Mac Pro-Chamber exhaust sounds awesome and not too loud.took about and hour to install.

      Dannyboy

      Year: 1992 Submodel: Other

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      August 27, 2015

      Couldn't be happier.

      Paired this with a HP catted midpipe. Sounds awesome!!

      Mike

      Year: 1986 Submodel: GT Eastampton, NJ

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 20, 2015

      Awesome sound!

      This is the reason the mustang has that iconic sound. These are a must have for anyone looking to make their car loud. Great flowmaster quality and fit.

      JustinN61

      Year: 1992 Submodel: GT Gilbertsville, PA

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      December 29, 2014

      Flowmaster American thunder

      Great exhaust, purchased this for my 92 lx and American Muscle got it to me in about 2 days. The install was straight forward taking a little over an hour with basic hand tools. The system looks great and sounds even better. I def recommend this system for anybody with a fox mustang looking for some mean grunt.

      Mean92347

      Year: 1992 Submodel: Other New York

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      May 15, 2014

      Great Catback

      before buying this catback i had stock headers mid pipe and super 44 mufflers with the pretty much stock exhuast i wasnt getting much sound out of my exhaust so i decided to upgrade and bought bbk equal length headers, bbk h pipe with high flow cats match all of that up to this catback man what a world of difference car sounds amazing now.

      airwolf

      Year: 1993 Submodel: Other Elkton, VA

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      July 27, 2012

      great sound

      My 13 year old son and I installed this system on our 1992 Lx Summer edition. We all so used the bbk off road H-pipe . We installed the system in an afternoon,fit well but a hoist would have made it easier. The sound is fantstic,lots of people ask about it.Just need to add the BBK headers to finish it off.

      Ranchman

      Year: 1992 Submodel: Other Kenora,Ontario,Canada

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      July 27, 2012

      The Right Stuff

      Everything you need is in the box. Fits with all factory brackets and hangers. Sounds great! I haven't used my radio since the install; I just listen to the car. Good Flowmaster sound w/o being too obnoxious. http://youtu.be/gs4-YuyKXH4 The video doesn't do it justice but take a look anyway.

      BiminiBlue92

      Year: 1992 Submodel: Other Reading, PA

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      February 14, 2012

      Installation on a 93 Cobra

      The product came packaged very well with little chance of damage happening during shipment. I purchased this kit for installation on my 1993 Cobra and although it is not mentioned on the application guide it does fit with a very, very slight adjustment to the tail pipe hanger brackets. The system went in very easy and fit very well. The slight adjustment is done to the tail pipe hanger bracket which allows the tips to clear the rear skirt. I trimmed the tab of the bracket that installs into the frame to allow a very slight pivot down which in turn allowed a slight drop (approx 1/8”). The sound is great, not overwhelming but a very attractive tone and growl when throttled up. I am very happy with the product…

      Geee

      Year: 1993 Submodel: Cobra OC

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      December 18, 2017

      Amazing sound!

      Paired with the Mac Off-road H pipe sounds amazing! True Foxbody sound that we all have come to love! This exhaust is a great set up and fits nicely but you do have to take your time and put it all in and together and make sure clearance is good before tightening anything! My only complaint is my drivers side tip sticks out a half inch further than right side so will have to take to exhaust shop and have them cut 3/8 to 1/2 inch off the part that goes into muffler to get it to match! Takes a full day to install it and H pipe and you will need to either have a lift or jack that will raise it high enough to route tail pipe over axle, I had to take it to mexhanic with lift to get them to install tail pipes due to this issue.

      SBW

      Year: 1993 Submodel: LX

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      May 02, 2014

      Sounds Great, But....

      The sound is pretty sweet after a lengthy install on these bad boys. My main problem was the clamps they sent with it. I definitely recommend getting 3/8" clamps to replace the chinsy 1/4" ones they send with the system. Then you can get a good bite down without snapping them from the torque (like I did on one side). The other problem I encountered was the hangers coming off the mufflers and tailpipes don't have a head on them, like my stocker ones did, to keep from slipping off. After a mellow ride I checked them thoroughly for problems. I noticed on one side it slipped off the mounting hanger. To resolve this, I was fortunate to know a welder friend who welded washers to the ends of all the brackets to keep the rubber grommets from slipping off again. After some hit and miss, overall the sound is sweet...especially with the top down! The only other issue I have is why they have the tailpipes going on the inside of the mufflers verses the outer side. But oh well, sounds great and I'm happy. Speedy shipping as always through AM. Good luck and don't forget the 3/8" clamps!

      Tomicino

      Year: 1991 Submodel: Other East Troy, WI, USA

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 01, 2012

      Great system!

      Had this system in for about a week and its great! Get lots of comments. Its not like super loud were your gonna wake the neighbors but its an awesome performance sound! unfortunately AM didnt have the stainless steel system just the aluminized steel one and me living in MN i had to get stainless but nonetheless this is a great exhaust system. Highly recommend

      MustangMike93

      Year: 1993 Submodel: Other Burnsville, MN, USA

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      April 12, 2012

      CLassic Flowmaster Sound

      I put this onto the 86 after getting tired of the volume of the dumped dynomax race bullet mufflers. deffinately an improvement, much cleaner sound, and a lot less interior noise

      Robert

      Year: 1986 Submodel: Other Downingtown, PA

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      March 27, 2012

      Great product

      I shopped around for a exhaust system and decided that the flow master system was the best product for the money. With their reputation you cant go wrong.

      cherryman

      Year: 1988 Submodel: Other tampa,fl.

      Helpful (0)

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