Powertip Clamp-On Muffler Kit (Single) - 4 inch or 4 1/2 inch $297.00 Powertip Clamp-On Muffler Kit (1 pr) - 4 inch or 4 1/2 inch $864.00 Powertip Clamp-On Muffler Kit (2 pr) - 4 inch or 4 1/2 inch $1,296.00 Powertip Clamp-On Muffler Kit (3 pr) - 4 inch or 4 1/2 inch $1,791.00