08-15 Hayabusa Pro Street 4 Tank Top This is for just the tank top. This tank top drops down lower in back to work with cut frame rail bikes. If you have a stock frame, then this tank is not for you. Because this tank is so low, it's only available in the 99-00 in/out bung style...an internal fuel pump will not fit. It works with a Scott dampener. This tank is a prostreet 3 with wings to cover the space between the tank and the frame. The bottom has been redesigned to reduce fuel capacity and weight while giving more room in the plenum area. This tank is noticeably lighter than the other prostreet tanks.