BEmgo Wide-Mouth Megaphone Universal Muffler 80-84013 ReviewbP PP Emgo Wide-Mouth Megaphone Universal Muffler 80-84013 PMegaphone muffler is 26in. L; Megaphone wide-mouth is 24in. LPShorty muffler measures 12in. LPTurn-out muffler is 19in. L and fits 1 34in. and 1 12in. pipesPDunstall-replica mufflers available in wide-mouth outlet (27 14in. L) or reverse-cone style (27 34in.