If you want coilovers, i would suggest you sell them. You will always feel the need to upgrade and will do so when you have the money. Springs are great if you don't want the drop. I paid almost the same for my pro kit springs and pro damper shocks as i would have for coilovers but obviously i didn't want a big drop so coilovers would be overkill. Plus, i didn't want adjustability, i wanted something out the box that worked for me. So yeah, unless they are what you want, sell them and save.