The Eibach ERS coilover spring measures 18.00 inches in free length with a 3.75 inch inner diameter and is part of Eibach's Race Spring System. Manufactured in series production to achieve consistent linear spring characteristics, the ERS line emphasizes low tolerances and repeatable rates for track and race applications where predictable spring behavior and manufacturing quality are important.
Eibach ERS 18.00 in. Length x 3.75 in. ID Coil-Over Spring