If you are competing in a AMA Supercross or AMA Motocross series, the Ti-6 Pro titanium exhaust system is perfect for you; created as a full race system, the Ti-6 Pro is designed to increase performance and help professional racers pass AMA/FIM sound regulations. Ti-6 titanium exhaust system is designed to improve performance and power; constructed of titanium throughout the head pipe, mid pipe and canister; this is the ideal exhaust for any off-road or closed course racer looking for improved performance, durability and a professional look; comes with a removable USFS approved spark arrestor making it easy to alternate between off-road and closed course riding T-6 stainless steel exhaust system offers the same benefits as Ti-6 titanium exhaust system, but the T-6 is constructed of stainless steel and aluminum for increased strength and durability while giving riders a more affordable alternative to titanium; comes with a removable USFS approved spark arrestor making it easy to alternate between off-road and closed course riding 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.. EXHAUST T6 0112023F