Vance & Hines Big Shot Duals - Chrome 17927 The ultimate complete system for late-model touring machines Armed with full-coverage, 220 degree-wrap, 2 1/2in heat shields that are essentially blue-proof for long-lasting style Heat shields surround 1 3/4in headpipes that flow into 2 1/8in muffler bodies True 2-into-2 system eliminates factory crossover and provides a clean, classic dresser look down both sides of the bike Specially tuned baffles produce the deep Vance & Hines exhaust note with optional quiet baffles also available