I have a used set of Eibach Sportline Springs. Part number is #4.8520 the drop is 2"front 1.4"rear..... I had them on a 2009 323 sedan for 1 year or 30k .... car went back off of lease.......springs are in excellent shape......Go to
http://performance-suspension.eibach.com/ to see if these will fit your car.... New Springs are $399.00 plus tax and shipping ..... These are for sale for $180.00 firm