Published on July 19, 2019. 2 1 8 Muffler Clamps. Stainless steel 2 1/8" 55mm motorcycle exhaust clamp heavy, 2 1/2"x 3/8",heavy duty muffler clamps ,4 pcs, made in. Ford n801515 3/8x2 1/2" muffler clamp heavy duty lot of 41. The Bye Forever Show.