Hypercoils 14" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 125 lb. NecksGen All headers are a direct

All headers are a direct fit bolt on replacement when used with the correct matching mid-pipes which are available with high flow catalytic converters and in off road race versions

1/4 in Hose Barb Outlet

Cast Crank

2015 Chevrolet Tahoe

1973-1980 Buick Century

Hypercoils 14" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 125 lb. NecksGen All headers are a directOptimum 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. The results are in and they are simply incredible: More Deflection Less Weight Increased Rate Linearity More Resistance to Bowing Fits All