Spring 18in Coil-Over 2.5in ID Silver

The Spring 18in Coil-Over 2.5in ID Silver from Eibach is a precision suspension component engineered for enthusiasts and mechanics building custom lowered or adjustable height setups. This 18-inch coil-over spring delivers the foundation for performance suspension tuning, whether you're fine-tuning ride height for stance work, improving handling geometry, or integrating into a complete coil-over assembly. The 2.5-inch inner diameter accommodates standard monotube and twin-tube damper configurations, making it a versatile choice for both street and track applications.

Eibach's OEM-quality construction uses high-strength steel with precision winding to maintain consistent spring rate throughout the 18-inch working length. The silver powder-coat finish protects against corrosion while providing a clean aesthetic under the vehicle. Spring rate consistency is critical for suspension geometry—proper spring selection ensures your vehicle maintains correct ride height, suspension travel, and anti-squat/anti-dive characteristics. The 2.5-inch bore size is the industry standard for most coil-over damper shafts, allowing bolt-on compatibility with quality aftermarket shock absorbers without adapter sleeves.

Mechanics and fabricators commonly specify the Spring 18in Coil-Over 2.5in ID Silver for custom lowering projects, racing suspension builds, and replacement of worn OEM springs in coil-over configurations. Installation requires removing the old spring from your damper assembly, compressing the new spring using a proper spring compressor tool, and adjusting vehicle ride height via coil-over collar tuning. Verify your specific vehicle's spring rate requirement and damper bore diameter before ordering—this 18-inch length suits mid-to-high spring rate applications typical of performance suspension geometry. Proper installation with a spring compressor and torque specs ensures safety and optimal suspension performance.