^^^ Yes, what they said.
You might think that we're "just saying that because it's a brushless forum" but honestly, converting to BL power is the biggest performance increase you will ever see from what can be considered "one upgrade". Even el-cheapo motors and controllers will perform better than any nitro motor. Of course other upgrades may be required to allow the truck to better handle BL power, but I have a feeling that's the type of upgrade you were looking for anyways- ie. stronger gears, alloy transmission case, perhaps a wheelie bar...