Upgrade your Yamaha with the MBRP AT-6411SP Sport Slip-On Muffler. Designed for performance enthusiasts, this muffler enhances your vehicle's exhaust flow while delivering a mild yet aggressive exhaust note. Whether you're hitting the trails or cruising on the highway, this slip-on system ensures you have the power you need without the unnecessary noise. Crafted from high-quality 304 stainless steel and coated for durability, the MBRP Sport Muffler is lighter than stock alternatives, helping to improve overall performance. The innovative design meets the stringent 96 DB noise regulations at 4000 RPM, so you can ride confidently without drawing unwanted attention. No clutching is required for installation, making it a hassle-free upgrade for any rider looking to enhance their machine's capabilities. Features: * Mild exhaust note compared to utility systems * No clutching required for easy installation * Engineered to meet 96 DB at 4000 RPM * Constructed from lightweight 304 stainless steel * Ceramic coated for added durability