@TylerJones — I've got two 6s Mojave's. One of them is an EXB that came as a roller (discontinued). I run my EXB on paddle tires mostly—in the sand and snow. I live in Southern California and it can get hot here and so I decided to use a Castle
MMX8s paired with a 1717, 1650kv, and I run it on 6s or 8s. It has
plenty of power with that system. It rips down the beach at 50+ mph. If you are thinking Hobbwing instead of Castle, I'd go with the
Max6 and the 4985. If you're looking for macho power, either one of those systems will work just like a charm. The only problem you will have is finding batteries that can withstand the punishment of powering the system. The truck hits thermal shutoff after about 20 minutes of hard driving on the beach with paddles.
The other is a BLX that I build from scratch as an "ultralight" version and was able to cut down the weight by 15%. Since it's a fair bit lighter, I went with a Castle Mamba X and the 1515 V2, 2200kv. It has plenty of power, albeit, the way I have it geared (for 50+ mph) it does get hot fairly quickly. I like running the Castle systems because they are sensored and I can set a temp cutoff so I don't burn out my ESC/ motor. Where I live, the way I drive, and where I drive, heat is always a problem, even with fans. If you drive like me (fully pinned), the stock system may not work for you, depending on how you gear the truck, the terrain you're on, and the outside temperature of where you live.
I love overpowering my rigs. The systems mentioned above will do it.