Mike sells everything here in the RCM store you need to make it brushless
1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
Hobao has an actual conversion kit coming out or is already out to turn a Hyper 9 into a Hyper 9E, less the shocks I am thinking. I have the Hyper 9E, and its excellent. The only issue I am seeing is the lack of mudguards