Pro Circuit&';s Ti-6 BC Titanium Exhaust System was created for professional racers competing in a series such as AMA Supercross or AMA Motocross to ensure they pass AMA/FIM sound regulations. The Ti-6 BC Titanium Exhaust System is constructed of titanium throughout the head pipe, mid pipe, canister and end-cap. The Ti-6 BC is the next generation of professional level race exhausts. Features: Passes AMA/FIM sound regulations Improves performance Titanium construction throughout head pipe, mid pipe, and canister Titanium end-cap construction Machined aluminum muffler bracket for increased strength and durability Asymmetrical muffler configuration for increased packing volume Machined mid pipe to head pipe joint for a better, leak free fit TIG precision welding Made in the USA NOTE: The Ti-6 BC is a full race system intended for closed-course racing only.