817425 This Flowmaster American Thunder® cat-back exhaust system for the 2000-2006 Toyota Tundra trucks with the 4.7L engine is perfect for the person looking for a deep aggressive exterior sound with a moderate interior tone, and with all of the performance benefits that you would expect from Flowmaster®. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal exhaust system features 16-gauge mandrel-bent stainless steel tubing flowing into a specially designed resonator and a Super 50™ Series performance muffler for a deep powerful exterior sound with minimal interior drone. The dual 2.50-inch stainless steel tailpipes use the factory hanger locations for an easy installation and include two choices for tailpipe exits, either behind the rear wheels, which is ideal for towing or straight out the back under the rear bumper for a muscular look. The system is finished off with a pair of large 3.00-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. The system includes all necessary parts and hardware for an easy installation you can do at home. For those who prefer all stainless steel construction with a 3-year Limited Warranty, check out exhaust system #17425. Notes: Fits both 2/4 wheel drive models and all wheelbases. Features: Includes Hangers and Hardware for an Easy Installation Mandrel-bent 16-gauge Stainless Steel Tubing Moderately Aggressive Exterior Exhaust Tone Connects After Factory Catalytic Converter Dyno Tuned for Maximum Performance 3.00-inch Polished Stainless Steel Tips Super 50 Series Performance Muffler Choice of Two Tailpipe Exit Locations Uses the Factory Hanger Locations Lifetime Limited Warranty 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 Out Rear / Dual Out Side Heat Shield No Inlet Diameter (in) 3 Material 409 Stainless Steel Muffler Part Number Kit Only Muffler Quantity 1 Muffler Series Super 50 Series Outlet Diameter (in) 2.5 Product Type Exhaust System Single Dual Dual Sound Level Aggressive / Moderate System Type Cat-back Tip Diameter (in) 3 Tip Quantity 2 Tubing Diameter (in) 2.5 UPC 700042024681 California Proposition 65 Chemical Name Chromium (hexavalent compounds) Nickel (Metallic) California Proposition 65 Required Yes Part Number 817425