Underdrive pulley?
05-30-2006, 12:11 AM
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I dont think its worth it from a performance standpoint. they cost around 100 dollars or more, and you gain probably around 1 or 2 horsepower, what it does do though is make your accessories spin slower which makes the load on the engine a little lighter and gives you better gas mileage, that is why I did it to my car. but you will not feel any difference in power with just the pulley.