Like I said before and I'm gonna say it again.....Fatty's are an under rated pipe in my oppinion. They give the best of both worlds, low end and good pull to the top. I used to have them on my bike until I went to a dune port by F.A.S.T.. Now I run cpi's but I still have my fatty's in the garage. There just to good to give up, besides you never know when I want to build another shee. Just my thoughts. :beer: