Go Fast Bits Underdrive Crank Pulley Nissan 300ZX (Needs shorter belt)

Go Fast Bits lightweight pulleys are crafted from 6061-T6 aluminum which is superior aircraft grade aluminum and extremely light. This will reduce the rotational mass of the pulley which reduces the drag on the crankshaft, allowing power to be increased. Most of Go Fast Bits’ pulley kits are underdrive pulleys which make the corresponding accessory spin slower, helping reduce the power loss of the motor. They do NOT affect the accessories in a negative way whatsoever. The precisely crafted and machined aluminum will be 100% functional in increasing your performance and looks great under the hood as well.