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

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