18IN COIL OVER SPRING 3 IN ID SILVER

The 18IN COIL OVER SPRING 3 IN ID SILVER from EIBACH represents precision suspension engineering for builders and enthusiasts who demand repeatable, tunable ride height and spring rates. This coilover spring sits at the heart of modern suspension geometry correction—whether you're lowering a street car, dialing in a track setup, or fine-tuning weight transfer on a road course vehicle. The 18-inch length and 3-inch inner diameter make it compatible with many coilover systems that require a compact, linear spring rate for consistent damping feedback and predictable suspension behavior.

Eibach has engineered this coil spring using high-strength steel and precision winding to maintain consistent load characteristics across the full travel range. The silver powder-coat finish protects against corrosion while allowing easy visual inspection for coil binding or material fatigue during routine maintenance. At 14.595 lbs per spring, the weight penalty remains minimal—critical when calculating unsprung mass and suspension response times. The 3-inch ID bore accepts standard 60mm or 63mm shock bodies, making integration with most aftermarket coilover platforms straightforward; verify your specific dampener diameter before purchase to ensure proper fitment and eliminate bind or excessive clearance that could compromise suspension travel.

Performance-focused builders gravitate toward Eibach springs for their consistency, longevity, and ability to work harmoniously with adjustable dampers—essential when dialing in corner weights or fine-tuning ride stiffness without compromising street livability. Installation requires proper spring compressors and alignment tools; improper seating can introduce preload errors that degrade handling and accelerate wear. This 18-inch coil spring delivers the precision response enthusiasts expect on everything from autocross events to weekend canyon runs, provided shock selection and spring rate align with your vehicle's target weight distribution and suspension geometry.