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The Eibach ERS silver coilover spring with a 3.75 in inner diameter is intended for coilover suspension work and handling upgrades where correct inner sizing is essential. It provides a repeatable spring element that mates with coilover components and supports predictable suspension response. Opt for this spring when you need a dependable, consistent spring choice for rebuilds or custom assemblies.
Eibach Silver Coilover Spring - 3.75in I.D.
