Ofan does not make a thing they just import. As all ways the pro kit come with more up grades out of the box then a RTR. I am sure the radio system is just adequate and not much more in the RTR like most RTR. I think the RTR has more aluminum where the kit has more CF. I do not do RTR as you just end up with a much better vehicle with a kit and in the end. Moat times even costing you less the buying a RTR and doing all the up grades and better radio.