Bassani Road Rage II Mega Series 2-into-1 Black Exhaust System 1D12RB Designed specifically to address the needs of tuned motors built for high horsepower applications Features 2-into-1 equal-length 1 3/4in.-1 7/8in. stepped headpipes Tapered megaphone-style muffler body with 4in. polished or black billet end cap with contrasting machined flutes Include full-coverage heat shields Oxygen sensor ports and plugs (12mm and 18mm)