The Eibach ERS rear spring is specified at 13 inches in length with a 5.00 inch outside diameter and a platinum finish for rear coilover applications. As a replacement spring it supplies defined dimensions for installers tuning rear ride height or rebuilding coilovers, offering a consistent spring form factor for compatible suspension systems where these measurements are required.
Eibach ERS 13 in. Length x 5.00 in. OD Platinum Rear Spring