Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 350 lb. HASZ20DK Available for rectangular LS3 and

Available for rectangular LS3 and raised port LS7 enginesFAST is the leading developer of electronic fuel injection systems

Bead Breaker

GM LS3 / L76 Fuel RailsAeromotive Inc

Backed by 60-day

Provides Proper Spacing

Hypercoils 4" Coil-Over Spring - 2-1/2" I.D. - 350 lb. HASZ20DK Available for rectangular LS3 andHypercoils 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