This Flowmaster® FlowFX® cat-back exhaust system for the 2022-2025 Toyota Tundra trucks with the 3.4-liter engine is manufactured using durable 409 stainless steel throughout and features dual 2.50-inch dual inlet and 3.00-inch single exit mandrel bent pipes for better exhaust gas flow. A FlowFX "straight-through" muffler is used for a moderate sound level and maximum performance over the stock muffler. Dyno increases of 11 hp and 12 lbs-ft over stock measured at the rear wheels. This system exits out the side, behind the rear wheel with a 4.50-inch black ceramic tip for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.