My first time going brushless and wanted to try a non-sensored motor. Turn out to be great value for money, entire combo provided me everything for an upgrade from stock kit. The motor packed a lot of punch which can be programmed from the card to reduce various setting for novice to easily control their cars. The factory wires needed to be swapped with any two for the motor to turn in the correction direction (Swap Orange with Yellow). It does give a high pitch sound on initial throttle but guess that must be from the switching frequency. Another 5 stars for first time upgrades, go for it.