Home » Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System
Flowmaster

Flowmaster 99-06 GM 1500 ECB 143.5in. American Thunder Cat-Back Exhaust System

SKU: flo17395
Out of stock
$571.95

Ready to install and hit the road!

All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!

Got questions?
Feel free to get in touch

For the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.S.S. (Dual out same side) systems are the perfect choice. The American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The exhaust system is constructed from 3.00-inch mandrel-bent aluminized steel tubing flowing into a Super 40 Series performance muffler for a deep powerful sound, then is finished off with dual 2.50-inch tailpipes and a pair of 3.00-inch polished stainless steel tips. Includes all necessary hardware, instructions and is covered by our 3-year Limited Warranty. For those who prefer full stainless steel construction and a Lifetime Limited Warranty, check out part# 817395. Notes: Fits both 2/4 wheel drive models with extended cab/short bed configuration on a 143.5-inch wheelbase. Fits 1999-2007* (*2007 Classic Only) Chevrolet Silverado, GMC Sierra 1500 trucks with 4.8L or 5.3L engine. Extended Cab/Short Bed Only - Aggressive sound Fits 1999-2007* (*2007 Classic Only) Chevrolet Silverado and GMC Sierra 1500 truck with 4.8L or 5.3L engine, fits 2/4 wheel drive models with extended cab/short bed configuration on a 143.5-inch wheelbase.
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Dual 3.00-inch Polished Stainless Steel Tips
  • Super 40 Series Performance Muffler
  • Dyno Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • Quick and Easy Installation

Fitment:
1999 Chevrolet Silverado 1500
1999 GMC Sierra 1500
2000 Chevrolet Silverado 1500
2000 GMC Sierra 1500
2001 Chevrolet Silverado 1500
2001 GMC Sierra 1500
2002 Chevrolet Silverado 1500
2002 GMC Sierra 1500
2003 Chevrolet Silverado 1500
2003 GMC Sierra 1500
2004 Chevrolet Silverado 1500
2004 GMC Sierra 1500
2005 Chevrolet Silverado 1500
2005 GMC Sierra 1500
2006 Chevrolet Silverado 1500
2006 GMC Sierra 1500
2007 Chevrolet Silverado 1500 Classic
2007 GMC Sierra 1500 Classic


Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1