Will the roll bar kit and spring kit work ok an a ZX4 ST(part#'s seem to designate for a zx3)? Will the performance dampers also work, and how much better are they then the svt's dampers? Basically i want the car to handle more like my old svt contour, cornered like on rails but wasn't too harsh elsewhere. I think the eibach springs and sways of same profile, will be stiffer then what i want. What do you think[dunno] ? Also, I live in MI so can I come pick up parts to skip s&h? Thanks for your time.