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  1. #1
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    Default GXP Rims on 01 GTP

    So I'm back with a few questions.

    First off I'm wondering what tires I should buy to keep everything up and up for my GXP rims.
    18x7 and 18x8

    I'm running P235/60R16, and id like to stay around that diameter to keep the speedo alright.
    Also to note, id rather be slightly under that diameter than over.

    Finally, are GXP rims lighter or heavier than GTP Special Edition rims? I'm curious what the weights are.

  2. #2
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: GXP Rims on 01 GTP

    Heavier than 16's that's for sure.

    245/45/18's is the tire size to run.

    SMGPFC Member #1

  3. #3
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    Default Re: GXP Rims on 01 GTP

    Will that be for both 18x8 and 18x7?

  4. #4
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: GXP Rims on 01 GTP

    Yes.

    SMGPFC Member #1

  5. #5
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    Default Re: GXP Rims on 01 GTP

    Also, I just remembered, will my lug nuts on my current wheels work for the GXP rims? if not what ones do I need to buy?

  6. #6
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    Default Re: GXP Rims on 01 GTP

    bump

  7. #7
    GrandPrix Junkie SgtMarshal's Avatar
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    Default Re: GXP Rims on 01 GTP

    an 18x8 weighs about 25 lbs. I would seriously doubt a special edition from a 2001 would weigh more than 20 lbs

    edit: just so you know, 18x8 gxp wheels are getting harder to find, while there are tons of 18x7. you can find tons of oem 18x7's on ebay for 150 a piece easily. however, the performance tire selection for an 18x7 is more limited. I have a 2008 Grand Prix GXP with 18x8's on the front and 18x7's on the back, and am considering taking the 18x8's off and replacing them with 18x7 just I can buy a single size tire.
    Last edited by SgtMarshal; 03-19-2017 at 09:46 AM.

  8. #8
    GT Level Member NotEnoughGPs's Avatar
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    Default Re: GXP Rims on 01 GTP

    I have read that a number of owners have installed tire size 245/45R18 on the 18 X 7 Alcoa GXP rims. They indicated that this size tire will result in accurate speedo readings and also will not rub the inner fenders when carrying a heavy load.
    I already run the 245/45R18 tires on my GP on the Eagle Alloy wheels
    and have not had any problems.
    Last edited by NotEnoughGPs; 04-06-2017 at 04:22 PM.
    2002 Grand Prix GT coupe - 40th anniv. 254,000 miles, daily driver
    2002 Grand Prix GTP coupe - 55,000 miles
    2001 Grand Prix GTP coupe - 31,000 miles
    2000 Grand Prix GTP coupe - 96,000 miles

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