This universal resonator is designed to add a weld-in (or clamp-in for existing systems with V-Band clamps) resonator to some of our exhaust systems, or any 3 IN exhaust application (there is also a universal resonator delete pipe for those wanting to remove a resonator in an existing exhaust system see Part #49M100005). They feature weld-in V-Band flanges for a tight, leak-free fitment.Stainless Steel Construction: This exhaust resonator is constructed using polished 304 stainless steel for maximum strength and durability.V-Band Connection: Stainless-steel machined v-band flanges provide simple to install, leak-free joints.High Quality Stainless Steel Hardware: High quality stainless steel clamps are used for a hassle-free installation.TIG-Welded: 100% TIG-Welded for race-proven strength and durability.Emissions Disclaimer: This product does not require a CARB EO#.aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.