I installed this combo kit on my Sakura D3. Works perfect. The ESC comes w/ the touring software installed. So, i downloaded the PC application from Speed Passion website n connected my ESC to the PC n changed its setting to Driftspec. The program card can be connected directly to the ESC and is then used to change various motor setting. ***However, to change ESC car type's setting u need to change it (the software) via a program from the PC as i said above. Havn't really seen any problem w/ the motor yet. just somewhat a hiccup respond when u're revving up n down at low to mid range. I havnt used this servo w/ my D3 because some said that it's too fast n u don't really need a fast servo for a drift car. So, i just installed a standard BB servo (Futaba s3004) n it works fine. A great combo kit at a good price. Really recommend it.