Win A 2018 RTR Spec 3 Mustang Enter Now!
Talk to a Mustang Expert
1-888-332-7930
Mon - Sun, 8:30 AM EST - 11:00 PM EST

Free Shipping On Orders Over $49. Details

Flowmaster American Thunder Cat-Back - Stainless Steel (87-93 GT)

Market Price $609.99 You Save 13% ($80.02)
Our Price

$529.97

FREE Shipping
  • Item 18447
  • MPN# 817116

In Stock Ships same business day.
Ship to: ASHBURN - 20146
Please enter a valid Postal Code
We're sorry, zip can't be updated at this time.
Choose options to add to cart
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Get Up To $75 Back

    Features & Details

    • Aggressive Flowmaster Sound
    • Super 44 Series Mufflers
    • Mandrel-Bent Tubing
    • 409 Stainless Steel Construction
    • Fits 1987-1993 GT Mustangs
    Flowmaster Sound. Give your Mustang that unmistakeable Flowmaster sound with a nice power boost by installing a American Thunder catback Exhaust system. Featuring mandrel bent tubing this Flowmaster system will improve exhaust flow for an increase in power, and the included Super 44 Series Mufflers will improve your exhausts sound for a deeper throatier muscle car exhaust note.

    Stainless Steel Construction. Constructed from mandrel bent 2.5" 409 stainless steel tubing for it's corrosion resistant properties the Flowmaster American Thunder catback features Super 44 Series chambered mufflers for that classic muscle car sound.

    Application. This Flowmaster American Thunder stainless steel Cat-Back exhaust system is designed specifically for use on the 1987 to 1993 GT Mustangs for great looks and great sound.

    Fitment: 1987 1988 1989 1990 1991 1992 1993 Details

    What's in the Box
    • (2) Muffler assemblies
    • (2) Over axle pipes
    • (2) Exhaust Tips
    • (2) Clamps
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: 409 Stainless Steel Tip Material: 409 Stainless Steel
    Piping Size: 2.5" Tip Size: N/A
    Muffler Type: Chambered Fitment: 87-93 GT Mustangs
    Will it fit my Mustang?
    • GT - 87, 88, 89, 90, 91, 92, 93

    Fits GT Only

    People Who Bought This Item Also Bought

    Most Helpful Reviews

    5/5

    Flowmaster the master

    Hands down there is no sound on a FOX like a flowmaster. This went on my 93 and I couldnt be happier. Great quality and great sound. What more can you ask for.

    Helpful (1)

    5/5
    Great sound completes my exhaust upgrade

    Love the sound of the thunder catback. Easy to install and can feel the power. I get plenty of looks as well. My pony sounds like a stud

    Helpful (1)

    Overall Rating 4.8 out of 5 stars
    Read All 4 Reviews

    Customer Photos

    You Might Also Like

    1 Questions / 1 Answers

    Ask a Question

    Hi was wondering if the setup was in all about 7 feet long? Thanks

    Dude

    • Hi,We do not have a exact length on this Flowmaster American Thunder Cat-Back, But I can tell you that the average Foxbody cat back is around 4.5- 5.5 feet long

      Chris J

    Helpful (0)

    More Products You Might Like

    Customer Reviews (4) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Afternoon

    • Loudness / Volume 4.5 4.5
    • Exhaust Note 4.75 4.8
    • Fit & Finish 4.75 4.8
    • Bang For Your Buck 4.5 4.5



    • 5/5

      Installation Time: Afternoon

      August 13, 2015

      Flowmaster the master

      Hands down there is no sound on a FOX like a flowmaster. This went on my 93 and I couldnt be happier. Great quality and great sound. What more can you ask for.

      JoeHernandez2

      Year: 2006 Submodel: GT West Chester, PA

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 19, 2013

      Great sound completes my exhaust upgrade

      Love the sound of the thunder catback. Easy to install and can feel the power. I get plenty of looks as well. My pony sounds like a stud

      okiestang

      Year: 1989 Submodel: GT Oklahoma

      Helpful (1)

    • 5/5

      Installation Time: Full Day

      June 19, 2016

      Flowmaster American Thunder Catback - Stainless Steel (87-93 GT)

      Great system. I installed mine with BBK shorty unequal length ceramic coated headers and BBK offroad X pipe from American Muscle. The combo is unbelievable. Not back firing, great sound and super tough. Thanks A.M.

      Cobra8541

      Year: 1993 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Less than 1 Hour

      July 01, 2013

      Nice exhaust

      My original exhaust broke due to driving my car on a poorly maintained road. My car is all stock so I wanted to keep my new exhaust on the more subtle end with a slight upgrade. This was definitely the right answer. Slightly aggressive without being obnoxious. It fits my cars personality well.

      Justin89

      Year: 1989 Submodel: GT Detroit, MI

      Helpful (0)

    Related Mustang Categories