I may be buying a used eibach pro kit from another site and was wondering which shocks and struts most people use with it? I was originally going to buy a kit, but figured if I could piece one togeather cheaper I would just do that. Also, the kit has been on for 3 years, not sure the mileage, but will that hurt anything? Im planning on buying new spring isolators. Can I run the kit on my stock shocks/struts till I get new ones without hurting anything?

Is it fiber or urethane?