Designed to improve performance and power over previous systems The ideal system for any rider or racer looking for improved performance, durability and a professional look T-6 systems feature stainless-steel construction throughout and aluminum silencer canister Machined aluminum muffler brackets for increased strength and durability Asymmetrical muffler configuration for increased packing volume Most systems equipped with a RC-4 Resonance Chamber for reduced sound output Machined mid pipe to headpipe joint for a better, leak-free fit TIG precision welding Made in the U. S. A.