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Thread: 2025 Silverado 5.3 tuning

  1. 2 Weeks Ago #1
    Austin23
    Austin23 is offline
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    Jan 2025
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    2025 Silverado 5.3 tuning

    I want to shut off the AFM/DOD on my 25 Silverado 1500 WT single cab long box, but my HPtuners won't connect to the truck to read the ECU, any ideas??p
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  2. 2 Weeks Ago #2
    LFox51402
    LFox51402 is offline
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    Jun 2025
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    Going to have to send off ECM to be unlocked.
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