Fits: 2017-2022 GM L5P w/ 6.6L Duramax

The HP Tuners L5P E41 ECM gives you the ability to tune your 2017+ 6.6L Duramax. With this ECM you gain full access to calibrate, log, and scan via the OBD2 Port with your MPVI2 and VCM Suite 4.3+. 

Features: 

• Gain the ability to tune your 6.6L L5P.
• Allows full access to calibrate, log, and scan through the OBD2 Port Via an MPVI3 and VCM Suite 4.3+
• VCM Scanner, dealer diagnostic and other diagnostic tools will continue to function normally.

Note: 

• These unlocked ECM's will not be able to communicate with the GM Factory Tools, GM will not be able to flash or modify your ECM for recalls anymore.
• This ECM can ONLY be tuned via an MPVI3 and VCM Suite 4.3+. 
• To tune your L5P ECM you require 8 Universal Credits, an MPVI3 with the latest firmware, the latest version of VCM Suite and an internet connection.
• VCM Suite 4.3+ can be used to return to stock calibration and/or update to the latest stock calibration.
  
• Vehicle Anti-Theft System relearn by a dealer tool is required once the ECM is returned to the vehicle.

Part Number: HP-L5P-E41-ECM