Use this exhaust system when you want to enhance your daily driving or show off at car meets. It's perfect for Toyota Tundra owners who love a sporty sound and performance upgrade. The main piping is 2.5 inches in diameter, and it has 4 - inch polished clamp - on double wall angle cut rolled edge tips. You can easily install it on your 2009 - 2021 Toyota Tundra and enjoy the improved engine tone and performance.