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

3 Reviews
Our Price

$499.76

  • Item #18447
  • MPN# 817116

  • Market Price $554.99
  • You Save 10% ($55.23)
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Features
  • Aggressive Flowmaster sound
  • Super 44 Series mufflers
  • Mandrel bent tubing
  • 409 stainless steel construction
  • Fits 1987-1993 GT Mustangs
Description
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 Catback 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

Won't fit? Add an exception

What's in the Box
  • (2) Muffler assemblies
  • (2) Over axle pipes
  • (2) Exhaust Tips
  • (2) Clamps
Installation Info
Tech Specs
Catback 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?
  • Foxbody - 87, 88, 89, 90, 91, 92, 93

Fits GT Only

Most Helpful Reviews

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)

4/5
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 ...

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Helpful (0)

Read All 3 Reviews
Overall Rating 4.7 out of 5 stars

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Customer Reviews (3) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Less than 1 Hour

  • Loudness / Volume 4.333333 4.3
  • Exhaust Note 4.666667 4.7
  • Fit & Finish 4.666667 4.7
  • Bang For Your Buck 4.333333 4.3



  • 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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Oklahoma

    Helpful (1) (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 Model: GT Driving Style: Show 'Stangs I have owned: 2 Detroit, MI

    Helpful (0) (1)

  • 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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 West Chester, PA

    Helpful (0) (0)

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