you would prolly have to pin out the stock gage to fing where the gas indicator is then fabricate a plug. it would probably only indicate when you are low still. the ecus on fz6 indicate level but that is a different bike and wouldnt match up to the r6 as far as all the other electronics. the gages look cool but to be honest i dont think you could change em out. if anything contact the company and ask what applications they are for and im sure they got some sort of resident expert that could help you out with wiring them up. hope that helps.