Hey buddy, i watched part 1 & 2 of mufler mod with liquid metal base paste. couldnt find part 3 or more i am going to biuld my own becaus i keep blowing the muffler of at the top weld LOL! havae you ever worked with copper? my idea is to weld not Sweat the copper together. "WHY COPPER" because you can get any angle, size, expansion. ETC. IM GONNA FILL THA BAFFLE WITH CPPER SCOURING PADS. also known as chore/choir-boy? its gotta Be burnt with a torch before you put it in there or it wil smoke and just be nasty, i know this because of where i grewup. thats all ill say about that. LOL! have you ever built with copper or known of? heard of ANY COPPER EXHAUST SYSTEMS? PLEASE!!!! let me know best regards Windy City Bob P.S. i dig yur bike man!