Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 450 lb. Steering Wheels & Components From a standing idle to

From a standing idle to the most extreme RPM

260 lb/in Spring Rate

Heavy Duty Hardware

6 AN Male to 3/8 in Tubing

Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 450 lb. Steering Wheels & Components From a standing idle toOptimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils. The OBD design enables Hyperco to take full advantage of its ultra high tensile material by optimizing the applied stress through adjusting the spring's body diameter. HYPERCOILS because the most important race is the one you are in. Hyperco is a supplier of precision engineered, high performance suspension