Bassani 2-Into-1 Mid-Length Exhaust System With Super Bike Muffler For Harley Bassani delivers with its meticulously hand TIG welded Stainless steel system, offering the perfect blend of style and high performance. Its high-flow catalyst ensures compliance across 49 states, making it an ideal choice for those seeking both aesthetics and functionality. Features: 49 state emissions approved Stepped headers merge into a 4 Super Bike Stainless muffler 1-3/4 in. headpipe steps up to 1-7/8 in. into the collector to increase flow and improve performance 4 in. Straight Can 11 muffler body with matching Aluminum end cap Hand TIG Welding 18mm and 12mm O2 Ports with adapters and plugs New Pro Comp Baffle has all new aggressive sound Partial Heat shields and mounting hardware included Made in the USA