You're sitting around with your typical street/strip V-8 and wondering, should I get 2.5-inch-diameter exhaust pipes and mufflers, or should I go 3-inch? In this episode of Engine Masters, presented by AMSOIL, we will help you decide, giving answers about power, tuning, and weight on 2.5- and 3-inch systems. You'll also find out about a very simple combo for 600-plus horsepower from a 454 Chevy! Finally, thank you to our new supporting sponsors, Mr. Gasket and Earl's Plumbing!