SSC chassis, rpm arms, rpm bumpers, billet center diff, castle 1410 5mm shaft motor, mmp esc, novac glitch buster (a must), losi scte 12mm hard anodized shocks, and few other lil things. It's hardly even a traxxas machine anymore, but it still is barely. lol I can not wait to get to the next race with this thing. It's been a struggle getting it set up correctly, but it is almost there. Wow is it fast and nimble! I'm always searching for something even better though. Anyone have any performance upgrades they would recommend?