Like the title say I was at the local yard and found a set of Eibach springs, the red oned, and wanted to know how to tell if they are still good.\n\nAnd if so what else would I need to completed the system? The focus had yellow Koni shocks on th front and different ones on the back? dont know what that was about?\n\nThe car looked as if it was hit dead on! messed up front end. Another one bites the dust just makes my car rare!