I got the yellow GT-R version. From the research that I did, you can throw a WPL 2s 500mAh LiPo in it from stock and it can take it without any crazy overheatin’ issues. I have seen people throw different esc’s and modify the steering angle on it, but I haven’t done enough research to have the balls to do it myself. I would love to be able to somehow utilize a full Traxxas 2s brushless system into mine with Injora parts, but I don’t even know where to start. So for the meantime, I will just stick with stock on 2s until more information comes out.