HP Tuners E41 ECM Upgrade Kit for 2018-2023 Silverado/Sierra 6.6L Duramax - ECM-00-L5P-K

Key Features & Specs:

• Brand: HP Tuners
• Part Number: ECM-00-L5P-K
• Product Type: ECM Upgrade Kit
• ECM Compatibility: GM E41 ECM
• Engine Applications: 6.6L Duramax L5P / L5D
• Installation: Upgrade controller without removing ECM from vehicle
• IMMO Relearn: Not required
• Crank Relearn: Not required
• ECM Replacement Procedure: “Replace ECM” function not required
• Purpose: Enables tuning access for supported E41 ECM applications

Fitment:

• 2018-2023 Chevrolet Silverado 2500HD 6.6L Duramax L5P/L5D
• 2018-2023 Chevrolet Silverado 3500HD 6.6L Duramax L5P/L5D
• 2018-2023 GMC Sierra 2500HD 6.6L Duramax L5P/L5D
• 2018-2023 GMC Sierra 3500HD 6.6L Duramax L5P/L5D

The HP Tuners E41 ECM Upgrade Kit ECM-00-L5P-K enables tuning access for supported GM E41 ECM controllers found in 6.6L Duramax L5P and L5D applications. This upgrade solution allows the controller to be upgraded without removing the ECM from the vehicle, simplifying installation for tuners and shops. The kit eliminates the need for common relearn procedures, including immobilizer relearn, crank relearn, and the “Replace ECM” function, allowing faster setup and streamlined tuning access when used with HP Tuners software and compatible interfaces.