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The Eibach ERS silver coilover spring with a 3.75 in inner diameter is designed for coilover suspension assemblies and chassis tuning where inner diameter matters. It supplies a defined, reliable spring element for rebuilds or custom setups and is sized to fit standard coilover hardware. Choose this spring when consistent spring behavior and correct fit are important for installation and suspension setup.
Eibach Silver Coilover Spring - 3.75in I.D.
