2-1 / 2 "Big Radius 2-2 exhaust. 14-20XL. Chrome. Streamlined curves that never seem to end, looks that call for a second glance. Like all Vance & Hines pipes, the Big Radius comes with full coverage 2 1 Plasma-cut 2 "diameter heat shields that maintain the 'new' look and virtually eliminate visible bluing. Power, torque and the signature Hot-Rod sound are all included. Baffles are removable. Note: See 558779 for optional silent valve.