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Flowmaster American Thunder Cat-Back Exhaust For 1996-1999 Chevy/GMC 1500 5.7L

Pricing: $750.95

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For the person who is looking for an aluminized steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone. The American Thunder® system is heavy 16-gauge mandrel-bent aluminized steel tubing for durability and maximum performance. Includes a aluminized steel 70™ Series Big Block II performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of highly polished 3.00-inch 304 stainless steel tips embossed with the Flowmaster® name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home. Covered by our 3-year Limited Warranty. For those who prefer full stainless steel construction with a Lifetime Limited Warranty, check out part# 817470. Notes: Fits 2/4 wheel drive models with extended cab/short bed configuration 141-inch wheelbase.



  • Scavenger Series Y-collector for Improved Scavenging
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • 70 Series Big Block II Performance Muffler
  • Dyno Tuned for Maximum Performance
  • 3.00-inch Polished Stainless Steel Tips
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Quick and Easy Installation
  • 3-year Limited Warranty



  • 1996-1999 GMC Sierra 1500 5.7L
  • 1996-1999 Chevrolet Silverado 1500 5.7L



  • Flowmaster American Thunder Cat-Back Exhaust System
  • All Mounting Hardware



  • Fits 2/4 wheel drive models with extended cab/short bed configuration 141-inch wheelbase using dual catalytic converters
  • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations


  • 17470
  • 17470
  • Flowmaster
  • New

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