2-into-1 equal-length headers. Stepped 1-3/4 to 1-7/8 headpipes. Utilizes an advanced inner collector for maximum performance. Partial stainless steel heat shields. Hand TIG welding. 18 mm 02 bungs with 12 mm adapters. Limited edition 50th anniversary badging on muffler. Does not fit with passenger pegs. Made in the U.S.A..