Thread: Modifying GTP

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  1. #1 Modifying GTP 
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    As im getting closer and closer to start doing some slight mods to my 2002 GTP i had a question as far as the order i do these upgrades go. I am looking into purchasing a performance chip soon and would also like to get the 3.5 or 3.4 pulley as well. Does it matter if i were to chip my car as well as put on a smaller pulley before installing new exhaust?? I wasnt sure if adding these mods will harm anything without having upgraded exhaust ? I plan to do headers and exhaust within the year just was not sure if these other mods will perform ok with the stock exhaust in the mean time. Thanks for your help guys!
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  2. #2 Re: Modifying GTP 
    Killa Bee Scottydoggs's Avatar
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    http://www.grandprixforums.net/threa...00-Powered-Car!! read this two times, and never say chip my car again please.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: Modifying GTP 
    GTP Level Member wowitsfast's Avatar
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    you can get speed daddy headers 1st instead for cheaper then the chip and have the foundation for many mods to come
    Just a bunch of junk thrown together http://www.grandprixforums.com/membe...ht=wowitsfasts
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  4. #4 Re: Modifying GTP 
    Never Be A Tim. ILoveAudi's Avatar
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    Buy headers, run a 3.5 pulley, and get a tune. Chips are a waste of money.
    1998 GTP Coupe - DIY Intake, Stock - 178k miles with rusty weight reduction (sold)
    1998 GTP Sedan - CT turbo kit, billet wheel pt61, s1x blower cam, Iceman stage 3 heads, 90# springs for all the valve floatz, walbro pump, fuel pump rewire *slowest s1x build ever*
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  5. #5 Re: Modifying GTP 
    GrandPrix Junkie SgtMarshal's Avatar
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    I recommend sticking to a horse and buggy before modding a grand prix unless the previously mentioned thread is read and information internalized.
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  6. #6 Re: Modifying GTP 
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    Thanks for the suggestions guys...sorry for my incorrect dialog and such, still new to gtp's as well as working on cars in general. Learning as i go Thanks again
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  7. #7 Re: Modifying GTP 
    GTP Level Member wowitsfast's Avatar
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    good cars to learn on imo. parts are easy to get and most are pretty cheap. be fore warned you will become a junk yard rat
    Just a bunch of junk thrown together http://www.grandprixforums.com/membe...ht=wowitsfasts
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