2017-2023 Duramax AMDP HP Tuners Transmission Tune File

Take your 6.6L L5P Duramax's performance to the next level with AMDP’s specialized transmission tuning designed specifically for the Allison 10-speed and 6-speed units. By optimizing shift points and increasing line pressure, this tune ensures your Duramax delivers power to the ground efficiently while significantly reducing clutch slippage. Whether you're towing heavy or seeking a crisper street drive, this calibration delivers the reliability and refinement your heavy-duty drivetrain deserves.

Part Number: L5P-T / L5P-T-C

• Optimized Shift Strategy with Crisp, Firm Shifts
• Increased Line Pressure
• Adjusted Shift Points for Stock or Larger Tires
• Improved Torque Converter Lockup
• Torque Management Matched to Your AMDP Engine Tuning
• Enhanced Towing Performance & Better Drivability Under Load
• Smoother Gear Transitions
• Reduced Transmission Temperatures

• Digital Tune File
• Available with or without HP Tuners Credits (Required if you have not previously  licensed/flashed the TCM before)

• 2017-2019 (T87A): Can be flashed directly via the OBDII port using your HP Tuners device.
• 2020-2023 (T93): Can be flashed directly via the OBDII port using your HP Tuners device.
• Hardware Requirements: An HP Tuners MPVI4 or MPVI3 device is required to load tuning.
• Credits: Tuning the TCM requires 4 HP Tuners Universal Credits.

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