I bought this motor few months ago to replace my stock silvercan 540 motor. Beside the 'Tamiya' brand this motor sure is a good motor upgrade. Unlike some motor with cheap looking cover, this motor sure looks great. The motor has smaller size compare to my stock motor and a bit lighter. Beside that, you'll have longer playing time compare to stock and the motor does make quieter sound. What impressed me the most is it has built in capacitor. There is no need for extra capacitor soldering. It is easy to take apart for cleaning. well, the downside, it is brushed so you have to change the brushes when the time comes.