Designed specifically to address the needs of tuned motors built for high-horsepower applicationsFeatures equal-length 1-3/4''-1-7/8'' stepped headpipesTapered megaphone-style muffler body with 4'' black billet end cap with contrasting machined flutesInclude full-coverage heat shieldsOxygen sensor ports and plugs (12 mm and 18 mm)Include removable baffleMade in the U.S.A.