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Kennedy Custom ECM Programming for Duramax L5P
Currently working with the 2017-2019 models only. 2020-2023 coming soon. This is not quite as simple as the prior models as the ECM needs to be unlocked prior to loading the tune file and as a result, things may not move quickly.
With proper tuning it is NOT necessary to remove any parts. The DPF remains intact and still regenerates as needed. Looks, smells, and sounds stock. This saves a LOT of expense and the tuning can always be changed later if necessary.
Sub-Category: Duramax L5P
Kennedy Custom ECM Programming for Duramax L5P-Autocal
Currently working with the 2017-2019 models only. 2020-2023 coming soon. This is not quite as simple as the prior models as the ECM needs to be unlocked prior to loading the tune file and as a result, things may not move quickly.
With proper tuning it is NOT necessary to remove any parts. The DPF remains intact and still regenerates as needed. Looks, smells, and sounds stock. This saves a LOT of expense and the tuning can always be changed later if necessary.
Sub-Category: Duramax L5P
L5P E41 ECM unlock
Purchase of this item requires purchase of Kennedy Custom ECM programming. This process is required in order to tune your ECM. If your ECM was previously unlocked and tuned we may or may not be able to tune it as is. Some unlockers change the boot block process and require a reset on the ECM first. If yours has not been previously tuned this is not a concern for you.
Sub-Category: Duramax L5P
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