Weight: 4.74These American made Exhaust Mufflers by Paughco are the top of the line. All of these mufflers fit 1 3/4" O.D. header pipes and feature all steel baffles. Use with required muffler clamps.2 1/2" O.D. Fishtail Muffler 28" long. Use 2 1/2" clamp.By: PAUGHCO INC