Julien, my tip for the day is. For most feeling and low money the eZrun (hobbywing) 25A esc with the 5400 motor or the 7800 is the best buy today if you ask me. around 50$ and a handheld programbox is realy good for it´s tuning.. (same as the speedpassions programbox etc). I have tested the >Tekin,Mamba,Graupner etc, but non of them can compete with the ultra lowbudget eZrun system
in feeling and price
A must upgrade is.
Ultra strong "bear thread" to wire the front upper arms, use thin CA glue to get it in place..you will not brek any arms anymore...
Stock plastic shocks are great, but Pro alu shocks allows you to use Duratrax vendetta buggy shock bladers, it will make the shocks 10000 times better...and the affect on the setup is real good. (even the springs, but for the Duratrax miniquake (yellow hard)