I have a 72' Cb500 and i need a new exhaust. The headers look good, but the muffler took a beating in a recent accident. I recently saw a 71' Cb750 and the owner had stock headers with muffler tips that were only about 6" long. I saw it as i was at the corner so asking him wasnt an option, but it sounded wicked and I would like to do the same to my bike. Anyone know where i could get 4 exhaust tips that are chrome and about the same length(6")? Also what is the diameter of the header pipes?