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Thread: L5P Duramax swap

  1. #1
    Potential Tuner
    Join Date
    Nov 2021
    Posts
    3

    L5P Duramax swap

    swapping a L5P into 1970 C/50 do i need to have ecm unlocked first before i can delete vats?

  2. #2
    Advanced Tuner
    Join Date
    Aug 2016
    Posts
    386
    You have to have the ECM unlocked before you can do ANYTHING with it.