I got this motor in my TT-01D kit. This motor is slightly faster than the TAMIYA stock silver can motor. I have tested it with TAMIYA TEU-101BK and a 4600 NiMH battery pack. The result is total run time is more than one hour (with few breaks in between). This fast motor does not drain battery fast and the color is black which is cool looking. I have compare this motor to the stock silver can motor by judging their looks. The Sports Tuned Motor has larger wire wrapping around the amateur than the stock motor. This means the Sports Tuned Motor has ample of torque which it has power to accelerate at the corner and break traction while drifting. This Sports Tuned Motor is a good upgrade of speed and power at the same time reasonably priced.