I installed an additional cooling fan on my 2003 busa. I took an original and mounted it directly to the radiator on the right side with the restraints used to hold transmission and engine oil coolers to truck radiator. Costs about $4.00 for 4. Fan housing does require some trimming. Also, must use muzzy's metal fan blade. The heat melts the stock plastic one just from idling too long! I wired it to a rocker switch with a fuse directly to the battery, to turn on when power is off. Switch can be mounted anywhere easy to reach, I mounted mine in the space on top of the gauges under the windscreen. I can get photos if anyone wants them.