Originally Posted by jorgesimes

For bodies it depends on the track but i use mostly Mazda6Speed and LTC from Protoform.
Upgrades:
- Gear Diff - for sure
- 3942 - 1 pair of silver associated springs
- 3943 - 2 pairs of blue associated springs
- 31262 - Silver anti-roll bar
- 1402 - 2 pairs short turnbuckles

All the rest comes with the kit. By the feedback of drivers around here maybe some Reflex Racing parts should be a nice upgrade also, but personally i've never tested them.