I have a set of DND springs that were in the car when I purchased it. When I look up the number the springs are listed for the v6 car. DND doesnt list a V8/cobra spring. Should I chunk these in the nearest dumpster or is there any benefit to them? I can turn a wrench on anything but I really dont no jack about suspension upgrades! They are Dyanamic Auto Design DZ 2100. All input will be appreciated!!