Coil Over Spring 3in ID 12in Tall

The HYPERCO Coil Over Spring 3in ID 12in Tall is a high-performance coil-over suspension spring engineered for custom and performance vehicle applications. With a 175 lb/in spring rate and 3-inch inner diameter, this coil-over spring delivers precise load management and consistent ride control for both street and track environments. The 12-inch height makes it compatible with most modern coil-over shock absorber systems, providing the foundation for advanced suspension geometry and damping tuning.

Constructed from high-quality steel and finished with silver powder coat, this spring resists corrosion and maintains its structural integrity through repeated compression cycles. The 175 lb/in rate is ideal for vehicles requiring firm spring support without excessive stiffness, balancing body control with ride comfort. The 3-inch inner diameter standardizes fitment across most coil-over platforms, ensuring compatibility with popular aftermarket shock systems. HYPERCO's manufacturing precision ensures consistent coil spacing and load characteristics across the entire spring, critical for predictable suspension behavior at the limit.

This spring suits builders and tuners developing custom suspension systems for road racing, autocross, drift, and high-performance street vehicles. Engineers and suspension technicians specify HYPERCO springs when spring rate precision and durability under dynamic loads are non-negotiable. The silver powder coat finish provides both corrosion protection and a clean appearance visible through transparent shock bodies or fender wells.

Coil-over springs like this one allow independent control of spring rate separate from damping, enabling fine-tuned suspension setup. The 175 lb/in specification is moderate enough for street comfort yet stiff enough to support aggressive driving, making it a versatile choice for dual-purpose performance vehicles. Whether building a track-focused platform or upgrading a street car, this spring delivers the engineering foundation serious suspension work demands.