Nitro St-15
I have an St-15. It runs fairly well, no real engine trouble so far... I put RC10gt arms and dogbones on it and now it really rocks! It handles the bumps better. Heres what i have added so far:
Duratrax tuned pipe set (TONS more power! WAY faster!)
Proline tires (The stock tires SUCK!)
Duratrax fuel filter
RC10gt arms and dogbones (Handles better)
traxxas turnbuckles and tie rods
Im not sure how much money i have sunk into it so far, but i'll bet it is more than an RC10GT Plus!