Coilover Spring 3.0in ID 12in Tall 150lb

The DRACO RACING Coilover Spring 3.0in ID 12in Tall 150lb is a high-performance suspension component engineered for vehicles requiring precise spring rate tuning and compact packaging. This coil-over spring delivers a 150 lb/in spring rate in a 12-inch length with a 3-inch inner diameter, making it suitable for custom suspension builds, racing applications, and off-road setups where ride height control and load capacity are critical.

Built from steel with a purple powder-coat finish, this coilover spring resists corrosion while maintaining visual identity in a custom suspension bay. The 150 lb/in spring rate sits in the middle ground of street and track applications—stiff enough to minimize body roll and support performance driving, yet compliant enough for daily use when paired with appropriate dampers. The 12-inch height allows integration into coilover systems with adjustable ride height, a standard feature on modern suspension platforms. At 3.55 lbs, the spring's weight is optimized to reduce unsprung mass without sacrificing durability.

This component is ideal for enthusiasts building custom coilover kits, upgrading factory suspension geometry, or tuning vehicle dynamics for track days and autocross competition. The 3-inch ID accommodates standard coilover sleeves and shock bodies, ensuring compatibility with most aftermarket suspension platforms. Buyers should verify shock shaft diameter and overall height clearance within their specific vehicle chassis before ordering.

Spring rate selection is fundamental to suspension performance: too soft and the vehicle wallows; too stiff and compliance suffers. The 150 lb/in specification represents a proven middle ground for street-to-sport applications, though final selection depends on vehicle weight, driving style, and damper characteristics. DRACO RACING's production tolerances ensure consistent performance across multiple units if building a full four-corner kit.