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The Eibach ERS 3.50 in. length x 1.63 in. ID coilover spring is produced within Eibach’s ERS race spring system to achieve linear rate behavior and low tolerances. Sized for coilover use with compact active length and a 1.63‑inch inner diameter, it supports precise spring rate selection and repeatable suspension response for setups that demand consistent performance.
Eibach ERS 3.50 in. Length x 1.63 in. ID Coil-Over Spring
