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Flowmaster American Thunder Catback Exhaust (98 GT, Cobra)

12 Reviews
Our Price

$482.72

  • Item #18408
  • MPN# 17215

  • Market Price $535.99
  • You Save 10% ($53.27)
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Product Videos Customer Photos
Features
  • Aggressive Flowmaster sound.
  • Super 44 Series Mufflers.
  • 2.5" Polished stainless steel tips.
  • Mandrel Bent Tubing.
  • Durable Aluminized Steel Construction.
  • Fits 1998 GT and SVT Cobra Mustangs.
Description
Flowmaster Sound.The Flowmaster American Thunder Catback exhaust system with its mandrel bent tubing will improve your 1998 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 Catback features Super 44 Series chambered mufflers with 2.5" diameter OEM style polished stainless steel tips for muscle car looks and sound.

Fitment. This Flowmaster American Thunder Catback exhaust system is designed to fit the 1998 GT or SVT Cobra Mustangs for both great looks and great sound.

Mustang Fitment: 1998 Details

What's in the Box
  • (1) Right muffler assembly
  • (1) Left muffler assembly
  • (1) Right tailpipe assembly
  • (1) Left tailpipe assembly
  • (2) Clamps
  • (4) Lock Washers
Installation Info
Tech Specs
Catback Exhaust Specifications
Piping Material: Aluminized Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 2.5"
Muffler Type: Chambered Fitment: 1998 GT or Cobra Mustangs
Fitment
  • Cobra - 98
  • GT - 98

Most Helpful Reviews View All

Overall Rating 5/5
5/5
muscle car sound

love flowmasters they sound great. the kit was high quality and the tips look good not to big like other companies out there. love the kit went on smooth no problems. nothing but great things!

Helpful (6) (0)

5/5
Classic Flows!!

These sound awesome, especially paired with an offroad h-pipe. Fast shipping!! Great product

Helpful (4) (0)

Videos

Hey I’m Justin with AmericanMuscle.com, and I’m checking out Flowmaster’s American Thunder Catback exhaust, fitting the 98 Mustang GT, and Cobra. As you may know, Flowmaster offers a number of different View Full Transcript

Customer Photos (2) View All

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Q & A (2 Questions, 2 Answers) Ask a Question

Will this produce hook up to flowtech long tube headers and shorty mid pipe? I have a 1998 cobra and I am looking to do the whole exhaust in one big job.

noodlebear Year: 1998 Model: Cobra

Question Resolved
Good Question (0) (0)
  • You can install this catback along with any header/mid-pipe combination designed for your 1998 Cobra. The catback just bolts right up into the stock location!

    Helpful (0) (0)

    LisaS Year: 1992 Model: GT

will this fit on pype's v6 dual catted x pipe?

Belber095 Year: 1998 Model: V6

Question Resolved
Good Question (0) (0)
  • Definitely! Once you have the true dual on your '98, you can then replace the catback portion of the Pypes conversion with any '98 GT catback of your choice. This Flowmaster would work with no problems!

    Helpful (1) (0)

    LisaS Year: 1992 Model: GT

Reviews (12) Write a Review

  • 5 Stars 1.0 100%
  • 4 Stars 0 0%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
5.0

out of 5 stars

12 Customers Recommend this Product

Installation Time:Afternoon

  • Loudness / Volume: 5 5/5
  • Exhaust Note: 5 5/5
  • Fit & Finish: 4.8 4.8/5
  • Bang For Your Buck: 4.8 4.8/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    February 08, 2010

    muscle car sound

    love flowmasters they sound great. the kit was high quality and the tips look good not to big like other companies out there. love the kit went on smooth no problems. nothing but great things!

    josh

    Helpful (6) (0)

  • 5/5 Yes, I recommend this product

    October 14, 2010

    Classic Flows!!

    These sound awesome, especially paired with an offroad h-pipe. Fast shipping!! Great product

    Matthew Pauley

    Driving Style: Daily Driver

    Helpful (4) (0)

  • 5/5 Yes, I recommend this product

    December 14, 2013

    Great Catback!

    Great catback! First start up I had a big smile on my face, haha. Coming from straight pipes, this is way quiet. When you step on it, you can hear the flows in action! Great for buck. Well worth it.

    Top 500 Contributor

    XSlashDashX

    Year: 1998 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Texas

    Helpful (3) (0)

  • 5/5 Yes, I recommend this product

    March 31, 2011

    Awesome Product

    First of all, I decided to buy this Catback from American Muscle because they had the cheapest price I could find. I ordered the product, and literally the next day I had it at my doorstep. I got it installed, and instantly noticed a difference with my Mustang. It was much louder, and just sounded like a pure beast (especially around 2k rpms!)It was just the sound I was looking for. I recommend buying this product from American Muscle, because I am so glad I decided to.

    Zak

    Year: 1998 Model: GT Driving Style: Daily Driver

    Helpful (2) (0)

  • 5/5 Yes, I recommend this product

    November 29, 2011

    Great sound

    Great product, great sound, easy to install, and looks great.

    Cobra22

    Year: 1998 Model: Cobra Driving Style: Show 'Stangs I have owned: 2 Mountain Home, ID

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    May 30, 2011

    Perfect Sound!

    Catted Tru-X Mid-pipe to Stock Ford cans had an annoying buzz. Installed Flow Master kit this weekend. Bolted up without a single issue. Annoying buzz is gone and the sound is perfect!

    Dan Robertson

    Year: 1998 Model: GT Driving Style: Daily Driver

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    May 14, 2010

    Awesome!

    I bought this with the Mach O/R H pipe and with these two matched together, it sounds amazing! It gives you a nice deep tone, and doesn't give me any problems. Always having people tell me they love it.

    Justin D.

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    March 13, 2010

    Cobra

    Great exhaust, paired with a mac o/r h-pipe sounds perfect. Classic mustang sound.

    GIO

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    August 14, 2011

    AMERICAN MUSCLE !

    Have this set up on my stang with a custom h pipe! with the cam and work done to my engine, the sound is awesome !!! sounds like a true muscle car !! hate to brag but havnt heard a better sounding stang this summer !

    TIM

    Year: 1998 Model: GT Driving Style: Street / Strip

    Helpful (0) (1)

  • 5/5 Yes, I recommend this product

    March 14, 2014

    Best add on ever!

    I have been a Flowmaster fan for years and after the satisfaction I recieved from this product I will be a customer for life! I am absolutley satisfied and blown away with not only the fit and finish but the sound and performance. I can not believe the heads that I turn!!!

    DETMICH

    Year: 1998 Model: Cobra Driving Style: Show 'Stangs I have owned: 1 Janesville, WI, USA

    Helpful (0) (0)

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