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Ships within 48 hours · Estimated delivery Nov 1 - Nov 6
GM switches
Extend the life of your C4 output shaft by reducing shaft whip with 6910CM bearing
Get maximum air with no air horn choke tower
Its lightweight construction reduces engine load
Failure or poor performance from a coil can result in a misfire
110 lbs./in. Spring Rate 12" Tall Coil Over Shock Springs - Silver (Pair) GM switchesSpeedmaster coil springs are designed to withstand the high stress levels of modern suspensions. They're manufactured from high quality chrome silicone steel, heat treated and shot peened, and then powdercoated or plated for protection and appearance. Each spring is guaranteed to be within five percent of its advertised rate.
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