I'm 46, I just overhauled my entire suspension recently. I used KYB's GR-2 & bump-stops, new stock springs, urethane bushings in many (but not all) places, Suspension Techniques sway-bar kit, my drivers seat is completely rebuilt. The ride is plenty stiff for me. It will be fine. Too many people think the OEM design was like a Cadi, so they go with stiff as a brick components. Another thing, if you build a car with track-like suspension and drive that car on a normal road, you are subjecting it to vibration and shock it was never designed for. It's 35 years old now; tracks are smooth and perfect, and roads are pieces of asphalt between potholes. I still have old Bridgestone Potenzas on 14x7 US slotted wheels, but will be purchasing Konig Rewinds 15x7 with new tires very soon. BTW, wider tires will ride harder than narrow tires, so don't go crazy.