Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 450 lb. BR20031 GM applications with 3-1/2" O-ring/filter

GM applications with 3-1/2" O-ring/filter diameter

vans and passenger cars sold through national retailers

EZ BracketFAST is the leading developer of electronic fuel injection systems

Increased velocity from 5

22 in W x 20 in H

Hypercoils 6" OBD Coil-Over Spring - 2-1/2" I.D. - 450 lb. BR20031 GM applications with 3-1/2" O-ring/filterOptimum 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