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The Eibach ERS coilover spring, with a 3.75‑inch inner diameter, represents the company’s race spring line produced with tight manufacturing tolerances and consistent spring rates. Eibach’s ERS program emphasizes linear rate characteristics and repeatable production, delivering springs made under established series production methods to ensure predictable behavior for race and coilover applications where consistent spring performance is required.
Eibach Silver Coilover Spring - 3.75in I.D
