Xtreme Performance Exhaust stainless steel packed resonators are designed to reduce unwanted exhaust drone and harsh frequencies while maintaining strong exhaust flow and performance. Built with a perforated straight through core and internal muffler packing, these resonators allow exhaust gases to flow freely while helping smooth and refine the exhaust tone for a cleaner sound profile. The 5 inch round body design provides effective sound control without creating excessive restriction, making these resonators ideal for performance exhaust systems, custom builds, muscle cars, trucks, and street performance applications. The straight through construction helps preserve horsepower and throttle response while reducing rasp and interior resonance commonly found in aggressive exhaust setups. Constructed from high quality stainless steel, these resonators offer excellent resistance to heat, rust, and corrosion for long lasting durability in demanding driving conditions. Designed for universal weld on installation, Xtreme Performance Exhaust packed resonators are perfect for custom fabrication projects where improved sound quality and high flow performance are both important.