Your engine drives more than your car's wheels. Engine power also has to go to your peripheral devices so you can have amenities like air conditioning, power steering, water pumps, and more. So you have a pulley system that takes power from your crankshaft. Each peripheral device has its own pulley and they are all connected by one serpentine belt or several different individual belts, depending on the car. aftermarket parts is that they give less power to your cooling system and alternator. They also do away with the harmonic dampener, which reduces vibration and wobble on stock crank pulleys. While this greatly reduces the pulley's weight, it may lead to faulty engine function because of uneven spinning from warping and wobble without a harmonic dampener. But if you still think you can properly monitor the performance of the power pulley, go for it.
Popular Models
While power pulleys will help get a horsepower boost out of any model of car, there are some particular vehicles drivers love to modify to get every ounce of performance they can possibly get. People love to get the most power out of their underdrive power pulley.
