Flowmaster American Thunder Catback Exhaust (05-10 GT, GT500)

Flowmaster American Thunder Catback Exhaust (05-10 GT, GT500)
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OUR PRICE$774.95
Flowmaster Mustang Exhaust Kits
Item # 18427
Market Price $842.34You Save 8% ($67.39)
Ships the same business day

Product Features

  • Aggressive Flowmaster 60-series Delta Flow sound
  • Durable 409 stainless steel construction
  • 2.5" mandrel bent tubing
  • 4" polished stainless steel tips
  • Includes Scavenger X-pipe and two Flowmaster 60 series mufflers
  • Fits 2005-2010 GT, Bullitt, and Shelby GT500
Signature Flowmaster Sound. Give your Mustang that unmistakeable Flowmaster sound with the American Thunder Catback Exhaust system from AmericanMuscle. The Flowmaster American Thunder Catback Exhaust with its mandrel bent tubing will greatly improve your Mustangs exhaust flow for an increase in power, and the included 60 Series Delta Flow Mufflers will improve your exhausts sound for a deep aggressive exhaust note.

Reuses Stock Cats. Installation of the Flowmaster American Thunder Catback Exhaust requires cutting the factory H-pipe to bolt up the new Scavenger X-Pipe directly behind the stock factory catalytic converters making your Mustang 100% smog-legal.

Race Car Growl. The included Scavenger X-Pipe not only helps increase power, but it also adds a loud raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

Quality Construction. Constructed from durable 2.5" 16 gauge 409 stainless steel tubing for it's corrosion resistant properties the Flowmaster American Thunder Catback features two 60 Series Delta Flow American Thunder mufflers with massive 4.0" diameter polished stainless steel tips for great muscle car looks and sound. As an added bonus the tips are embossed with the "Flowmaster" logo for true custom styling.

Application. This Flowmaster American Thunder Catback exhaust system is designed to fit the 2005 to 2010 GT, Bullitt and the 2007-2010 Shelby GT500 Mustangs for both great looks and great sound.

Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation. Click here for details.

Catback Exhaust Specifications
Piping Material: 409 Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 4.0"
Muffler Type: Chambered Fitment: 2005-2010 GT, Bullitt and Shelby GT500

Installation Time:

(approx) 2 Hours

Difficulty Level:

Advanced mechanical skills required.

What's in the box?

  • (2) Muffler assemblies
  • (2) Over axle pipes
  • (1) Scavenger X-pipe Assembly
  • (4) Clamps

What's in the box?

  • (2) Muffler assemblies
  • (2) Over axle pipes
  • (1) Scavenger X-pipe Assembly
  • (4) Clamps
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Fitment:
  • GT 05, 06, 07, 08, 09, 10
  • GT500 07, 08, 09, 10
  • Bullitt 08, 09

About Flowmaster

Flowmaster Mustang Exhaust Kits
Flowmaster, Inc. is a specialty performance aftermarket exhaust parts manufacturer. It was founded in 1983 by Ray Flugger. Originally created to minimize California Sprint Car engine noise without sacrificing performance, Flowmaster has grown to be one of the top performance manufacturers of performance exhaust systems, mufflers, racing mufflers, stainless steel mufflers, and exhaust accessories. Designed and developed for street & strip cars, muscle cars, trucks, diesel trucks, SUV's, motorhomes, ATVs and most everyday vehicles. The company is based out of Santa Rosa, California, Sacramento, California and Hayden, Idaho. Flowmaster performance exhaust products are 100% American Made for the World of Performance.

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