The Traxxas parts & aluminum steering
bell-crank are the cheapest
performance hop-ups, get them asap.
Next is a damn decent steering servo,
the stock throttle servo is fine, for
now.
I have installed the new Pro-Line
suspension kit. For me on asphalt, it
is a major improvement.
As for shocks, I got a set of the
Associated T/E-Maxx shocks. They were
hard to find so I bought 2 extra sets.