Not 100% sure on my spring rates, they are jic dc2 coil overs. I changed the rear springs to a softer set that tyrone with the wrx from grafton had, that made it heaps better, not sure what they are, I've never tested them. The guys I've been pit crewing for lately have been teaching me the dampner side of things a but lately. fingers crossed I get the car to the next ip queensland circuit racing meeting so they help with my car set up before I race them.. Haha