So I was wanting to do a little modification to my grand prix but I am new to modifications and still learning. My grand prix is completely stock but I was wanting to get a smaller pulley for the supercharger to add performance. Is there an ideal size to get for better performance and are there any other things that would have to be purchased to allow the smaller pulley to work?
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Tuesday, October 12th, 2010 AT 12:49 PM