A racer at our last series race that went to the Winternats said that he heard from the mugen people that there would be a update kit aval 4 the mrx3 people in the near future,after the car is out to the public"
to me its just a rumor till i see it in print from mugen.The car{MRX 3}out of the box is more capable than what i can input into it as it is.