- WORKS Crank Pulley Kit are made of hardened billet aluminium and it is ultra light-weight. - Weight reduction is how we are able to increase horsepower.Each pound of weight removed from the crankshaft is worth approximately 2.7hp and the gains increase even more dramatically with forced induction, nitrous, VTEC and increased RPM's. - It is guaranteed to increase throttle response and horsepower torque gain because of the reduction of weight and parasitic drag created by crank pulley, alternator, power steering & air-conditioner.
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