Well, I had some bad experiences with mine but that was a factory defect (or maybe the house was too big to jump over). A good stock motor, well that is basically preference, but the trinity p2k pro is fairly good but basically you cannot go too fast with stock motors. I was not aware that modified motors were a hassle. And about other modifications, the evader comes completely tricked out as soon as you get it so there is almost nothing that you can get to make it better. but they have a bunch of cool different colored parts.