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Thread: 99 trans am performance tune

  1. #11
    Joe (Moderator) joecar's Avatar
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    Apr 2003
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    28,403

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    Good to hear car runs good.

    Too bad about trans... what trans do you have...?

  2. #12
    Junior Member
    Join Date
    Aug 2016
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    It has a 4l60 but I have a 4l80 not sure which one I want to use. That one was for a 57 chevy but I can get more

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