Features stepped 1-3/4″ to 1-7/8″ equal length headpipes designed for maximum performance. Included heat shields cover enough of the headpipes for heat protection, but end inches from the collector to show off stainless steel and hand TIG welding. Tapered, megaphone-style, long muffler body or 4″ straight can muffler body; systems mount off traditional saddlebag location. Systems come with 18 mm and 12 mm O2 ports with sensors, adapters, and plugs. Include removable baffle and end cap. Made in the U.S.A..