Perrin Lightweight Crank PulleyThe PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power, a true weight savings that can be felt with every blip of the gas pedal. Decreases Rotational Mass PERRIN Crank Pulleys weigh 1. 04 and 1. 2 lbs., which is 4 lbs. lighter than the OEM crank pulley. This reduction in weight from the crankshaft is equal to removing more than 100+ lbs. of vehicle weight! Throttle response, horsepower, and torque are all increased
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