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.. EXHAUST RR2-1 FLUTE XL BK