Khrome Werks 4in. HP-Plus Touring/Performance Slant Down Slip-Ons - Touring - Chrome , Color: Chrome 202700 Constructed from one-piece 16-gauge steel tubing muffler shell with interchangeable baffle inserts Deep, mellow exhaust tone with horsepower and torque gains over stock mufflers Steel baffle core is first machine wrapped with stainless steel wool, followed by a high-temperature fiberglass blanket for acoustic longevity assurance Performance version is designed to enhance top-end power while retaining good low-end torque Touring version trades minimal top-end output for mile after mile of rumbling exhaust tone