Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 600 lb. 30005P Over the years we have

Over the years we have built and ran several cars and have an appreciation for the effort and dedication it takes compete

The Simpson Lever Camlock/Clip system is redesigned to be 15% lighter

1977-1990 Chevrolet G10

Straight-through design ensures unrestricted exhaust flow and reduces back pressure

The pieces are finished with stylish

Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 600 lb. 30005P Over the years we haveHypercoils are manufactured from the highest quality chrome silicone steel and high tensile chrome silicone steel available in the world. The material used in producing Hypercoils undergoes two separate magnaflux inspections. Once before manufacture and again after coiling. These inspections insure the wire is free from surface imperfections which, if gone undetected could lead to spring failure. The life of a suspension coil is directly related to