Ansmann Mad Rat upgrades

[5mudg3]

Hi all,

I hope you dont mind me asking this question as you all probably think its a little stupid. But ive recently bought a Mad Rat and snapped a suspension arm, now im replacing it and really enjoying doing it so my question is: what other components can be upgraded on the Mat Rat? Would any improve performance?

I really hope you dont mind me asking as im very new to this.

Thanks