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The Eibach ERS coilover spring, 3.75-inch inner diameter, belongs to Eibach's Race Spring System and is manufactured for consistent, linear spring rates with very low tolerances. Produced in series for repeatable characteristics, ERS springs provide predictable behavior across coilover applications. Use with coilover assemblies that accept a 3.75" I.D. for correct fit and function.
Eibach Silver Coilover Spring - 3.75in I.D.
