[millennium200]

Cameron,

In my humble opinion the spring rate on the older SPF cars with the AVO shocks is too stiff. They work fine on smooth roads but make the rear end of the car pogo over a dip at speed. The new SPF cars have a lower spring rate along with the Bilstein shocks. So my car handles much better over dips with the Bilstein shocks and new springs. And trust me the roads around here have a lot of dips.