thanks for the input but i do want to build one......i have built several beach cruisers that are sweet. i can build one of these on any other bike in less than 2 hours with my friends help. I am asking if you have any tips on creating your own custom exhaust.... I know I could just buy them online, but the whole part of this is creating from scratch and learning by creating myself not bidding on ebay. If you can help or offer any advice except to tell me that I shouldnt build one, I'd appreciate it! This isn't rocket science.