You're going to need the Novak HV Max series brushless system, either 4.5 or 6.5. The 4.5 wil rock with a lot more power, but the 6.5 will have longer run times. Castle Creations is coming out with a Mamba Monster within the next month or so that will also work on a Maxx sized truck. If you've got any more questions I'll help you with what I can. I'm no SweetDiesel or RobMob, or plaidfish, or any of the other gurus, but I will help you out with what I can. I have been doing a lot of research on the brushless system for my E-Maxx and the Revo that I'm going to get pretty soon. I also have a Castle Creations sidewinder for my RC10T4, and there quality was so good I bought Mamba Max 6900 brushless system just because it was a mamba priced reasonably. I think I'm going to put it in a Stampede until I get a dragster built, and I will have quite a brushless fleet. Also, I ordered the maxamps.com 6000 HV 2S LiPo battery and a hyperion charger from them. You will probably be looking at about $300 for the LiPos for your brushless system and a decent charger, plus a couple hundred for the brushless system. Just wanted to let you know what I've discovered. The valineon that you mentioned wont work on the E-Maxx.