i had a couple x-mods but the suspension lacks... got rid of them and got a mini T put a brushless in it that thing was fun.
have you added batteries or modified the power source yet? they can be pretty fun to drift if the surface is right.
its been a while but if memory serves you can safeley add a few volts to those things without cooking them.
MK1 ZTS w/Lentec ATX - More economical than a Prius
2" drop - projectors - boost by vortech - tune by fswerks
My Car: http://tinyurl.com/8mpden8