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.