17-21 GM Duramax L5P HP Tuners Modified Unlocked ECM

  • Sale
  • Regular price $649.99


HP Tuners exclusively presents our L5P Modified ECM Purchase & ECM Exchange Service, giving you the power to tune your 2017+ Chevrolet Silverado / GMC Sierra 2500/3500 6.6L Duramax. You now also have the option to either purchase an HP Tuners Modified ECM or send us your original ECM and we will exchange it for a HP Tuners modified one. Both options give you full access to calibrate, log and scan via the OBD2 port with your MPVI2 and VCM Suite 4.3+!

L5P Modified ECM Purchase:
This option allows you to purchase an already Modified ECM from us, and you keep your original ECM. Remember, do NOT send us your ECM.

L5P Exchange Service:
Select this option to send us your original ECM and we will Exchange it for an already modified ECM. Remember, you MUST send us your ECM first, turn around time is 2-3 weeks.

  • ECM Exchange Service: $649.99
    • (send in a core, receive a modified core back)
  • ECM (E41) License: 8 Universal Credits

– Once you have placed your order and provided your VIN, you must send us your original ECM first.
– Your ECM must be in functional, original, unopened and unmodified condition.
– You will not receive this same ECM back as this is an exchange service only. The ECM you receive has been modified to enable tuning.

HP Tuners reserves the right to refuse exchange of any ECM sent to us as part of this service.


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