Designed specifically to address the needs of tuned motors built for high-horsepower applications. Features equal-length 1-3/4″-1-7/8″ stepped headpipes. Tapered megaphone-style muffler body with 4″ black billet end cap with contrasting machined flutes. Include full-coverage heat shields. Oxygen sensor ports and plugs (12 mm and 18 mm). Include removable baffle. Made in the U.S.A..