Spring 12in Coil-Over 2.53in ID

The Spring 12in Coil-Over 2.53in ID from EIBACH is a precision suspension component engineered for enthusiasts and fabricators building custom lowered suspensions, performance street cars, and race-oriented vehicle platforms. This 12-inch coil-over spring delivers the adjustability and ride control that separate a dialed-in chassis from an unpredictable one, making it essential for anyone pursuing serious suspension geometry work or spring-rate customization on their build.

Built by EIBACH—a brand trusted by mechanics and tuners worldwide—this coil-over spring features a 2.53-inch inner diameter that mates with standard coil-over shock bodies and aftermarket valving systems. The 12-inch free length is a common specification for mid-travel applications, allowing proper suspension articulation while supporting lowered ride heights without running out of spring compression range during aggressive driving or track sessions. The spring's design enables fine-tuning of spring rate and preload, critical variables for corner-weighting, weight transfer management, and achieving the flat-cornering feel that transforms a vehicle's handling balance.

This component works best for builders integrating aftermarket coil-over kits, upgrading OEM suspension systems, or constructing bespoke setups on platforms where direct bolt-on solutions don't exist. Proper installation requires matching the spring rate to your vehicle's weight, suspension geometry, and intended use—consultation with a fabricator or suspension specialist ensures optimal preload and ride height. Weighing 4.48 pounds, the Spring 12in Coil-Over 2.53in ID is a lightweight, durable solution that rewards careful tuning with responsive, predictable chassis dynamics.