1986-93 Mustang Flowmaster American Thunder Catback Exhaust Kit - 5.0 by Flowmaster

Mustang Flowmaster American Thunder Catback Exhaust Kit (86-93) 5.0


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Flowmaster Mustang American Thunder Catback Exhaust Kit (86-93) 5.0 17213
  • Flowmaster Mustang American Thunder Catback Exhaust Kit (86-93) 5.0 17213
  • Flowmaster Mustang American Thunder Catback Exhaust Kit (86-93) 5.0 17213
  • Flowmaster Mustang American Thunder Catback Exhaust Kit (86-93) 5.0 17213
  • Flowmaster Mustang American Thunder Catback Exhaust Kit (86-93) 5.0 17213
  • Flowmaster Mustang American Thunder Catback Exhaust Kit (86-93) 5.0 17213

Improve throttle response, sound, and power with this 1986-93 Mustang Flowmaster American Thunder catback exhaust kit!

Item #FLO-17213
MPN# 17213

Your Price: $463.97

Market Price:$607.64
You Save 23.64 % ($143.67)

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Benefits

  • Signature Flowmaster Sound
  • Increased Performance
  • Improves Throttle Response
  • 3 Year Warranty

Features

  • American Thunder Mufflers
  • 2.5" Polished Stainless Steel Tips
  • 2.5" Mandrel Bent Tubing
  • 16 Gauge, Aluminized Steel Construction
  • Made In The USA

What's in the Box

  • (2) Super 44 Muffler Assemblies w/ Flow Tubes
  • (2) Tailpipes w/ Stainless Steel Tips
  • (2) Exhaust Clamps
  • (4) Hanger Keepers

Made in the USA

Product Description

Flowmaster American Thunder Catback Exhaust
Quickly, and easily, bolt on Flowmaster's signature sound to your Fox with this 1986-93 Mustang American Thunder catback exhaust kit! Along with the signature sound, the increased diameter tubing improves horsepower, torque, and throttle response! Flowmaster's American Thunder system delivers a moderate to aggressive interior, and exterior, tone; which is best suited to the Mustang enthusiast who wants their performance to be heard!

Flowmaster Quality
Flowmaster exhaust products are proudly made in the U.S.A. and the quality shows in this American Thunder catback. With easy installation in mind, this catback exhaust system is mandrel bent for maximum flow, and a precision fit! Constructed with 2.5" tubing, this catback flows much better than your factory 2.25" exhaust, for increased power and torque. Flowmaster's Delta Flow, Super 44 series mufflers provide a powerfully rich tone, and is their highest performing, 2-chamber muffler! An aluminized finish is utilized on this kit up until the tips, which have a polished finish that looks great coming out of your rear bumper! Flowmaster backs this kit against manufacturer's defects for 3 years from the date of purchase!

Fitment Note
Will fit 1993 Cobra with minor modification.

Application
-Fits 1986 Mustang GT
-Fits 1986-1993 Mustang LX


Flowmaster Exhaust Warranty - Click Here


See what our customers have to say about this product!
Check out customer reviews.


Related Articles

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    Adding a cat back from LMR to your Mustang will not only increase HP, but will also make you stand out from the crowd. If you are in the market an aggressive sound look no further than a Fox Body cat back exhaust. Follow along in this simple step by step installation to ensure proper fitment and get your Fox back on th... more

    Read more: 79 93 mustang , mustang

    Posted on 12/14/2016


  • Product Videos

    Fox Body Mustang Exhaust Kit Installation: Flowmaster Cat Back & SVE Off Road H Pipe

    Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!


    Customer Photos (7)



    Product Reviews (27)


    4.7
    out of 5 stars
    4.5 stars
    27 reviews
    5 stars    19
    4 stars    7
    3 stars    1
    2 stars    0
    1 star    0

    100%
    OF CUSTOMERS
    RECOMMEND THIS PRODUCT
    27 of 27 REVIEWS
    RECOMMEND THIS PRODUCT
    27 of 27 REVIEWS


    5 Stars   Sounds great
    By on 3/25/2014
    Bought this system for my 93 cobra, it fit great with the cobra extended tailpipe hangers. Great classic sound and the polished tailpipes look good.

    Yes, I would recommend this item to a friend!


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    5 Stars   exhaust
    By on 6/25/2014
    fit allmost perfect sound good nice tips

    Yes, I would recommend this item to a friend!


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    5 Stars   sounds great and looks great
    By on 10/30/2014
    Image uploaded by John R. me and my cousin we went to LateModel Restoration and bought 1986-04 FlowMaster American Thunder Cat- Backs for his -1993 LX Foxbody Mustang- it was not hard to install the exhaust and we had to use some tools but very easy to install it. these pipes sounds very great especially with a 427 stroker engine plus when you rev the engine it really sound great exspecially when you accelerate the gas down the road and everybody looks that's how good this exhaust kit sounds.

    Yes, I would recommend this item to a friend!


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    5 Stars   Looks great!
    By on 10/28/2014
    I bought the new cat back system to replace an older Flowmaster system I've had on for almost 20 years! The stainless pipes look great!

    Yes, I would recommend this item to a friend!


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    5 Stars   Good Fit
    By on 3/24/2014
    Looks and sounds great!!

    Yes, I would recommend this item to a friend!


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    4 Stars   High quality but...
    By on 12/17/2016
    ...if you purchase this, or probably any, dual-exhaust cat-back system to replace a single pipe system it will not be a 1-2-3 process. Keep in mind that I am retrofitting a 1983 Mercury Capri with the 302 and 4-bbl carburetor.

    As I mentioned the install was a bit more difficult then expected. The drivers side was pretty much a straight forward affair and the passenger side back to the rear axle was easy enough too.

    The issue is with clearances near the rear axle. Specifically, the brake lines and in my case the fuel lines coming from the fuel tank. All of those items will need to be relocated or re-positioned as they are much to close to the pipe.

    This is not a slam on the product but just a heads-up on what you might run into. My setup begins with Ford FRPP shorty headers, a BBK H-pipe, and the Flowmaster cat-back kit.

    Finally, the sound is much more aggressive than a stock dual exhaust like you would find on a 93' Mustang. In my case it is a bit more sound than I wanted. Just be aware.


    Yes, I would recommend this item to a friend!


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    5 Stars   Tight fit!!!
    By on 9/2/2014
    Bought this cat back because upon installation of my Maximum Motorsports panhard bar, I had to cut off the tailpipes that were on my car as the were welded in too low and caused a major clearance issue, the tailpipes in this kit fit with room to spare and also cleared my Maximum Motorsports HD torque arm!!! Very pleased!


    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Sounds great, classic Flowmaster!
    By on 6/23/2014
    My vintage 1990 OE catback finally failed and I'd had a similar system on my last Fox body. With the OE system the car sounded like an old school bus. Now it sounds like a Mustang! Happy with the purchase.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Love the sound, love the look.
    By on 6/24/2017
    If you can get under your Mustang, you can do this job! Sounds great, and looks great.

    As we were installing the last tailpipe part we found a flaw on the tip. Called LMR and they bent over backwards to get us a replacement tip ASAP. Customer service is incredible!

    Something this project reinforced for me and my teenager is that your Mustang wants to GO! Don't just putter around without ever getting warmed up. You've got to boil off the condensate in the pipes or they will rust out like our old ones.

    These pipes "recommend this product to a friend" all on their own, heading down the street.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    4 Stars   Great fit, but needs lap joint clamps
    By on 7/30/2016
    Great quality, easy install with my BBK shorties and BBK H-pipe. As others have said though, the kit-supplied clamps for the muffler to exhaust pipes are worthless. Despite ensuring the pipes were fully slid into the mufflers, and pushing the clamps out as far as possible on the muffler flange, it was as if they weren't even there... The exhaust pipes were still easily rotated. I took other's advice and ordered a pair of lap joint clamps... Rock solid. Would be great if Flowmaster or LMR offered these clamps as an upgrade to this kit. All in all, quite happy with fit, finish and alignment.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    4 Stars   Good quality, nice sounding exhaust.
    By on 8/9/2017
    I purchased this exhaust to replace some horribly pieced welded together exhaust on my otherwise excellent shape 89' vert. I can say that it lived up to the Flowmaster fitment that I've dealt with over the years. The install was quick and everything lined up well. The only qualm I have is that I wish that they would either use flanges or some type of band clamp instead of the u-bolts that they use. It would really finish off the system and make it look much better.

    Yes, I would recommend this item to a friend!


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    5 Stars   BEASTLY
    By on 3/26/2015
    iVE HAD FLOWMASTERS ON FOR AS LONG AS I CAN REMEMBER (PROBABLY ABOUT 15YRS) BUT WAS NEVER HAPPY HOW THEY FIT. SO I DECIDED TO BUY THESE. BOLTED IT UP TO A BBK X PIPE AND IT FIT PERFECT, THE SOUND IS COMPLETELY DIFFERENT FROM THE OLDER FLOWMASTERS I HAD, NOW MY STANG SOUNDS ABSOLUTELY AMAZING!!!! AND THE POLISHED TIPS ARE A NICE BONUS!!!

    Yes, I would recommend this item to a friend!


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    5 Stars   The Best. Hands Down.
    By on 2/15/2015
    There has never been anything that sounds better than an American V8 through Flowmaster mufflers. Deep, throaty, and mean as hell without being obnoxious or abrasive. If you want a "look at me" sound, go with Pypes brand, but if you want that classic American muscle car feel, this system with an off-road H-pipe is how you get it.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    4 Stars   Sounds awesome.
    By on 11/26/2016
    Would have given this 5 stars but the flow tube to mid pipe flare was too small. Needed an exhaust shop to expand the pipe some. So if you encounter this just take the pipes to your local exhaust shop and they can hook you up. Also both muffler outlets were bent but a small hammer can fix that. Nothing but a thing.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Great fit and sound! LMR.com Expert Review!
    By on 4/29/2014
    The catback on my car was welded together all funky and had black tailpipes. I put on wider 10" wheels in the back and the old tailpipe was melting the tire. I put this Flowmaster kit on the car and gained the clearance needed for my tire and also got the crisp, classic sound that Flowmaster gives you.

    Yes, I would recommend this item to a friend!


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    4 Stars   Pipes
    By on 3/13/2015
    Looks good. I have purchased many flowmaster kits for cars over the years. So not sure if I got this kit packaged on a Monday or Friday hanger was bent almost flat and had a good size dent on the muffler. No reflection on latemodelrestoration as it was factory packaging with no damage to the box.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Perfect fit with dual exhaust conversion kit
    By on 5/14/2016
    Image uploaded by John A. Awesome sound and fit perfectly with the dual exhaust conversion kit with BBK headers. My 84 Mercury Capri never sounded so good and the performance gains were unexpected but throttle response is much improved.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    4 Stars   love the look!
    By on 4/13/2017
    the look is great. can't beat the chrome tail pipes with 'flow master' laser etched in. it was a bit of a fight to get them to fit, but after a little persuasion, it all lined up

    Yes, I would recommend this item to a friend!


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    5 Stars   Superior sound
    By on 10/25/2015
    Image uploaded by Robert B. I am so glad I have LMR for all of my Mustang GT parts. The Flowmaster mufflers are the BOOM! What great sound and power they add to my Mustang. They look great too.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Easy install
    By on 4/13/2015
    Bought this for my 1987 gt. Shipping was quick. It was a easy install and paired with the off-road x-mid pipe the car sounds great now!

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    3 Stars   perfect fit
    By on 3/27/2015
    Flowmaster exhaust system that I put on my 82 Capri fit perfect And looks great.I will recommend you to all my friends

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Great Fit and price
    By on 9/17/2014
    Awesome sound for that classic 80's and 90's mustang sound. Only sound for the foxbody. The price is great as well.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Looks awesome and sounds great
    By on 6/13/2014
    Went together easily. Has a good rap when you accelerate but a good mellow tone when you're cruising.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Great fit!
    By on 4/14/2017
    Installed this kit with the LMR off road h-pipe. Easy install with that classic flowmaster sound!

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Great!
    By on 8/23/2015
    Image uploaded by Darren L. Fit perfect and sounds awesome! Stainless tips look awesome under my 86 vert!

    Yes, I would recommend this item to a friend!


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    4 Stars   Sounds nice
    By on 9/18/2015
    Excellent product went to get a really easy. And sounds awesome

    Yes, I would recommend this item to a friend!


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    5 Stars   car restoration
    By on 5/9/2014
    Bought the item to replace the old warn out part on my 88 convertible mustang

    Yes, I would recommend this item to a friend!


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    Vehicle Applications

    Ford Mustang - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)


    About This Brand


    Flowmaster
    Flowmaster - The Exhaust Technology Company
    Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.

    Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."

    Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!

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