i soon will have a new rd carbon fiber upper chassis for my nitro rustler. it is my first real upgrade that i have made to the chassis. well my other upgrades are ofna micro fial-safe, great planes fuel filter, trx pullstart, losi step pins, proline blades, proline sand paws, and that is all i can remember right now with out lookin at my car, i dont really have that many upgrades right now but i soon will get a lot. i hope to get big bores and aluminum shock towers soon!!!!
just remember duct tape and zip ties work wonders