The rear Bilsteins are black. So, I assume they are the touring kind. I believe the front is stock. I know the struts are at least black. If I were to use aftermarket springs ... will it level the car out? Because right now the rear is sagging because the stock springs, which are designed for the Nivos, are on the soft side. I read somewhere (perhaps here) that the Nivos take most of the load. Also, will the aftermarket springs impove the ride and handling?? Where is a good place to get them? I looked at IPD and they just have lowering springs.