I don't want to get a real expensive one since im just starting out but I want a good quality one, one that is pretty durable. The replacement parts are sold by almost every hobby dealer and there are more hop-up and aluminum parts for that truck than any other on the market. The engine is great and when the time comes you want to change it for more horsepower there are several other engines specifecly designed just for T-Maxx that work aswesome....