Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 450 lb. 3550224-104-XXL The Top Gun is perfect

The Top Gun is perfect for high horsepower tube chassis applications

Performer RPM

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2006-2007 LBZ 800/1250/1700 RPMBD Diesel Performance is unique among its peers in that it designs

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Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 450 lb. 3550224-104-XXL The Top Gun is perfectOptimum 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