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Exceeds factory quality and installs in less than an hour. Coated black, this pulley looks very much like a stock pulley.
NOTE: To realize the full potential of the pulley and to get maximum throttle response PFYC recommends a cold-air intake and a cat-back exhaust with U-bend removal.
These pulleys will only fit on factory nose drives and are finished in black zinc chromate coated steel. Please make certain you read the Q & A section below before choosing your pulley.
Also fits 2004-2007 Grand Prix, 2004-2005 Monte Carlo SS and 2004-2005 Impala SS.
NOTE: Care must be taken when replacing your pulley. Use the right tools and if necessary, get help from a friend or professional.
Q: Will the 3.25 or 3.00 pulley give me more horsepower?
A: Not necessarily. When using any pulley smaller than 3.4, a lot of additional heat is generated by the additional boost. This additional heat may cause detonation which in turn will cause knock retard, robbing you of horsepower. If you are not doing something to prevent the detonation caused by a higher temperature intake charge, we recommend you stick with the 3.4 pulley.
Q: What if I want the option of swapping pulley sizes but don't want the hassle of installing a Magnuson Nose Drive?
A: The Pulley Boys Qwikchange Pulley System is your answer. Installation of the hub is done just once and afterwards swapping pulleys is an easy 3 minute procedure. Even if you don't have an interest in swapping pulley sizes now, you may in the future and we recommend you take a close look at the Pulley Boys Qwikchange Pulley System. A link can be found in the Related Products section.
Q: Do I need to include a puller to install and remove a pulley? Can't I just use my regular pulley removers to save some cash?
A: You could try, but you'd probably end up ruining your stock pulley and possibly damaging the entire nose drive, and then you'd have to buy the Magnuson Nose Drive to replace it. It's safer to use our tool. We cannot guarantee that your factory pulley will remain intact but we can ensure that your supercharger bearings will not take a beating if you use the tool properly.
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