Features an all new headpipe design stepped for performance from 1-3/4″ to 1-7/8″ that merge into a long stainless megaphone muffler with a tig welded 50th anniversary logo. Standard features include removable baffle and end cap and partial stainless heat shields that cover the headers. Pipes are hand tig welded. 18 mm O2 bungs with 12 mm adapters.