To one and all of you fellow 9 riders, I thank you for all the input and advice that you gave me on the fitting of the cobra pipes, note is different than I expected but I would not change it for all the world. As per come of the replies that I received, the big black ugly hole will be filled soon and a fuel management system will be going into the bike in the near future. Will post pictures soon. Once again, thanks people, your help is appreciated. Stay upright, SPRAG.