Hypercoils 8" OBD Coil-Over Spring - 2-1/4" I.D. - 800 lb. Nomex Underwear Set Includes Filter Extension and Pan

Includes Filter Extension and Pan Gasket

Thread spark plug into tool

1974-1979 Oldsmobile Cutlass

2008-2019 Dodge Challenger

Hypercoils 8" OBD Coil-Over Spring - 2-1/4" I.D. - 800 lb. Nomex Underwear Set Includes Filter Extension and PanOptimum 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