17325 For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. This American Thunder system delivers a moderate interior tone with a deep powerful exterior tone and is suited to the enthusiast who wants their performance to be heard. The system attaches to the back of the catalytic converter with a dual inlet 50 Series Big Block muffler for a deep powerful sound without being obnoxious. Includes a large custom formed aluminum heat shield with stainless clamps and easily attaches directly to the muffler body. The custom bent 3.00-inch aluminized steel tailpipe uses the factory hanger locations for an easy installation and exits out behind the right side rear wheel which is ideal for towing. The tailpipe is finished off with a large 3.50-inch polished 304 stainless steel tip embossed with the Flowmaster logo. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and easy to follow instructions for a trouble free installation. Notes: Fits 2/4 wheel drive trucks with the extended cab/short bed configuration - 143.5-inch wheelbase. Features: Includes an Aluminum Heat Shield for Rapid Heat Dissipation Includes a Large 3.50-inch Polished 304 Stainless Steel Tip Includes Hangers and Hardware for an Easy Installation Mandrel-bent 16-gauge Aluminized Steel Tubing Dyno-tuned for Maximum Performance Stainless Steel Heat Shield Clamps Uses the Factory Hanger Locations Aggressive Exterior Exhaust Tone 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 Brand Flowmaster Emission Code 5 Exhaust Series American Thunder Exit Position Single Side Exit Heat Shield No Inlet Diameter (in) 2.75 Inlet Position Dual Material Aluminized Steel Muffler Part Number Kit Only Muffler Quantity 1 Muffler Series 50 Series Big Block Outlet Diameter (in) 3 Product Type Exhaust System Single Dual Single Sound Level Aggressive System Type Cat-back Tip Diameter (in) 3.5 Tip Quantity 1 Tubing Diameter (in) 3 UPC 700042017409 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 17325 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# 17325 Warranty for Part# 17325 Fits 1999-2002 Chevrolet Silverado and GMC Sierra 2500 3/4 Ton truck (not-HD) with 6.0L engine, fits 2/4 wheel drive with extended cab/short bed configuration on 143.5-inch wheelbase.