We and our C4's are worth it, tho, right Eric.... Got my spoiler the other day and I like it a lot. Just subtle enough for my taste. Can't wait to get it on...
Sometime down the road will be headers, new tires, refinish wheels, and who knows from there.
A few years ago we put polyurethane bushings in the back of our son's Chevelle. The squeaking would drive a person insane. The front was done with the polygraphite bushings and no squeaking. The urethane bushings definitely firmed things up. If you can get polygraphite for the Corvette, that would be the way to go.
Keith, I just spoke to Manny about the "Prothane" bushing he installs and they're not squeaky at all. They contain a lubricant to keep them noise free.
So these bushings are fine on our vettes.