2024-2026 Duramax L5P Motor Ops HP Tuners 10 Speed Transmission Tune Package

Fits

Note: If you already have the device and only need TCM tune files, Click Here!

Get the most out of your 2024+ L5P Duramax by adding custom transmission tuning. This calibration optimizes the Allison 10-speed to handle increased horsepower and torque while ensuring your 6.6L Duramax stays in the peak power band for crisp, reliable throttle response. This bundle includes the MPVI4 hardware and the 4 Universal Credits required to license the TCM after it is unlocked.

IMPORTANT: The factory TCM must be sent to HP Tuners for a physical T93 TCM Unlock Service (Global B). This unlock service is sold separately and is mandatory for tuning.

• Increased Transmission Line Pressure for better holding capacity
• Revised Shift Schedule Logic for improved driveability
• Optimized Torque Converter Lock-up strategy
• Improved Precision Shift Timing
• Direct Engine-to-Wheel Power Transfer

Package Includes:

• HP Tuners MPVI4 Blank Device (M04-000-00)
• 4 Universal HP Tuners Credits (Required for TCM License)
• 2024-2026 Duramax L5P Motor Ops HP Tuners 10 Speed Transmission Tuning

• TCM Service Required: You must purchase the T93 TCM Unlock Service (Global B) separately and ship your TCM to HP Tuners before this bundle can be used.

Click here to view Tuning Instructions

TDN App Invite Code: JGVD-8122

• Once your unlocked TCM is reinstalled, connect your MPVI4 to the vehicle and use the HP Tuners VCM Suite or TDN app to license the controller and flash your custom CCS calibration.