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Thread: 8L90 stock file

  1. 08-29-2021 #1
    wildfan1976
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    8L90 stock file

    Anybody have a stock tune file for the 8L90? 2017 silverado.
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  2. 08-30-2021 #2
    Russ K
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    This is a stock 2017 5.3 A8 trans.

    Russ Kemp
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