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Eibach ERS linear main spring, 14.00 inches long with a 3.75 inch inner diameter, designed for coilover assemblies. It serves as a direct-spec spring for setups requiring that length and ID, offering consistent linear response for suspension tuning. Install it when a precise 14.00" x 3.75" coilover main spring is specified to restore or modify ride height and spring rate.
Eibach ERS 14.00 in. Length x 3.75 in. ID Linear Main Spring
