Its official ....Yamaha are including an ECU remap and a booster as a package for approx 20 grand ....this package will increase the existing power of the r15 by 50% to an indicated 25bhp....this will be offered by Yamaha as a factory option very soon .....i was told by an Yamaha official and a insider.... expect a drop in mileage but a tremendous increase in acceleration and top speed.