2017-2023 Duramax AMDP HP Tuners Transmission Tune File

Fits

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
• Increased Line Pressure
• Improved Torque Converter Lockup
• Enhanced Towing Performance
• 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.
• Hardware Requirements: An HP Tuners MPVI4 or RTD device is required for 2020+ T93 support. (MPVI2 is supported for 2017-2019 T87A only).
• Credits: Tuning the TCM requires 4 HP Tuners Universal Credits.