Hypercoils 16" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 150 lb. AS0001 Four vivid colors

Four vivid colors

By using the kit system

and Mercury E4OD Automatic Transmissions

5 Gallon Refueling Vent Bottle & Cap (20 liter)

Hypercoils 16" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 150 lb. AS0001 Four vivid colorsOptimum 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