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Thread: Grand Prix GTP - More Boost

  1. #1 Grand Prix GTP - More Boost 
    Car Enthusiast CF Newbie
    Join Date
    Feb 2007
    Posts
    1
    Vehicle Profile:
    Year
    2003
    Make
    Pontiac
    Model
    Grand Prix
    Has anyone increased the boost on thier GTP?? If so what kind of results did you get and do you recommend any kits?

    Cheers
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  2. #2  
    that tall guy CF Senior Member
    Join Date
    Feb 2007
    Location
    NC
    Posts
    1,074
    Vehicle Profile:
    Year
    1997
    Make
    Pontiac
    Model
    Grand Prix GT
    if you were looking into something quick and easy, changing out your supercharger pulley will get you good results. if you take a look at this site: Thrasher M90 Press-on Pulley and scroll a little down and on the right side is listed out horsepower increases of the different pulley sizes. good luck!
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