this is one of the most awsome bashers you can buy. Huge, strong, light weight for its huge size
do these things
1 servo, no traxxas servos please, sell the one you have if it is brand new
2 wheels, stock are junk, Duratraxx 6packs are cheap, belted, and it will be another world, they will never blow up.
3 you already did it MAX6 esc, best update ever, stock ESC is pure junk.
4 stronger a arms
TRA7831 partnumber
check out this , very honest and professional guy about these things
https://youtu.be/skTpGe1ibLc
And if you really like to send it hard in future, i know what other parts you need,
better metal gears, and how to do the diff outdrives stronger easy way, center driveline fix, and alot more