I have a new merv and clicked on the upgrade to different motor/tqi link on the traxxas website. It shows i can upgrade to 2 channel or 4 channel tqi transmitter or can upgrade to VXL-3M ESC and Velineon 380 Motor.

what motor came with my traxxas then and why would the other two be better or why would the other transmitter be different?

i have the brushless edition