well i found some TPI BBK Power Pulleys has 3 pulleys...if i could get them for like 75-80$ is it worth it? also do you make any diff in performance....and will they hurt my 600 watt system and caust my lights to dim at idle? need imput fast befor they are sold!! will be goin on the truck with the parts in my sig!! thanks guys

 

I looked into getting pullies for my car and based on what I have learned, yes that is a great deal. Thats about 50% off of a brand new sticker price. However, some of the people in here have had issues with their alternator undercharging their batteries (especially the guys with the systems). So, I say, yes get them at that price and at least try out the alternator pulley. If you have issues with power failure, then simply put the stock one back on and sell the alternator pulley on ebay.

As far as performance, you will pick up 5-10hp, and shave off about 1mph off your 1/4 time. At that price, I think that is a great investment.