MRT Boss .21 and MRT GRP .21 difference??
Hi guys can anyone tell me if there is a difference between these two engines they seem the same but I am not 100% sure, and if there is what is it besides cooling head? It seems there are a good couple of variations around, Ninja, Falcon, Boss and GRP also TQ and maybe Reds Racing????
RX8 - Savox - Reds Racing - Ko - Contact - Enneti