I own both the LRP engine in a different truck and the new Kyosho Mad Force with the KE .25. Both are great engines so far, about a gallon through each and they actually seem to get more powerful. Both tune very easily and hold a tune very well. Power is night and day, though. The T Maxx my LRP is in is running steel everywhere I can in the driveline to hold out to it. When I first built the truck, it had a plastic center front shaft and all the rest were steel. That plastic shaft lasted about 5 minutes, then both U-joints gave out. It has mounds of torque, and very high top end too. I feel it would be too much for the Mad Force to handle and you'd be blowing gears and probably diffs every run. The KE .25 is much more tame in comparison, but still enough to do wheelies on command. And when the truck hits 3rd gear, hold on! The stock pipe and manifold are pretty nice, too. I think they are just standard 1/8 buggy pipes, but they work well.