Hypercoils 7" Coil-Over Spring - 2.50" I.D. - 700 lb. 711011 Knowing the exact air/fuel mixture

Knowing the exact air/fuel mixture running through your engine is the most important factor to extracting the highest levels of performance and durability

Dual Exit Tailpipes

570" ID that works well with our 951 dual valve springs

Every Dougs header comes with all the necessary mounting hardware

Hypercoils 7" Coil-Over Spring - 2.50" I.D. - 700 lb. 711011 Knowing the exact air/fuel mixtureHypercoils 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