17392 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. Notes: Fits both 2/4 wheel drive models with standard cab/short bed configuration 119 inch wheelbase. Features: 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 Dyno Tuned for Maximum Performance Super 40 Series Performance Muffler Uses the Factory Hanger Locations Quick and Easy Installation About Flowmaster Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound. SPECS 2WD/4WD 2WD/4WD Brand Flowmaster Emission Code 5 Exhaust Series American Thunder Exit Position Dual Same Side Exit Heat Shield No Inlet Diameter (in) 3 Material Aluminized Steel Muffler Part Number Kit Only Muffler Quantity 1 Muffler Series Super 40 Series Outlet Diameter (in) 2.5 Product Type Exhaust System Single Dual Dual Sound Level Aggressive System Type Cat-back Tip Diameter (in) 3 Tip Quantity 2 Tubing Diameter (in) 2.5 UPC 700042019687 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 17392 EMISSIONS 5 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. TECH RESOURCES Instructions for Part# 17392 Warranty for Part# 17392 Fits 1999-2007* (*2007 Classic Only) Chevrolet Silverado and GMC Sierra 1500 with 4.8L or 5.3L engine, fits 2/4 wheel drive models with standard cab/short bed configuration 119-inch wheelbase.