I have been looking over the mods that have been posted and am wondering if they void my warranty. Yes, I think they do. I got my 07 Classic back in March so have a 1 1/2 or there abouts on my warranty. I'm interested in doing the filter relocate for one but I want to verifiy that I have to wait. Probably best to let the kinks get worked out of her and have her fixed under warranty. She already has had a "pourus head" and the idle problem which were both covered under the warranty.