Hypercoils 12" Coil-Over Spring - 2-1/2" I.D. - 425 lb. 33700 integrated fuel shelf to minimize

integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh and a centered air cleaner flange for improved airflow and performance

this kit has everything that you need to limit the cam timing of your '07-'08 GEN IV and '14+ LT1 to 22 degrees

Fuel Pump Controller

Its fully automated and programmable to simulate various driving situations

progressive shift

Hypercoils 12" Coil-Over Spring - 2-1/2" I.D. - 425 lb. 33700 integrated fuel shelf to minimizeHypercoils 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