Elevate your 2024-2026 Duramax's shifting performance with AMDP's premium custom transmission tuning. Designed specifically for modern heavy-duty applications, this tuning optimizes shift firmness, timing, and pressure for smoother, quicker, and more reliable gear changes—whether you're daily driving, towing heavy loads, or pushing performance limits. AMDP is here for you.

Requirements:

• Unlocked T93 Global B TCM (Unlocked via HPT Send-In Service)
• AMDP HP Tuners RTD4/MPVI4
• Tuning Loaded Via the TDN App
• 4 Tuning Credits are required to load tuning.

Key Benefits:

Crisp, Firm Shifts: Eliminates sluggish factory shifting with faster, more positive engagement for improved drivability and reduced heat buildup.

Enhanced Holding Power: Increased line pressure to securely handle added torque from engine tunes or modifications, extending transmission life.

Customized Shift Points: Tailored for stock or larger tires, preventing lugging and optimizing throttle response.

Better Towing & Efficiency: Firmer lockup, refined patterns, and removed unnecessary limits for confident hauling and potential fuel economy gains.

This is a standalone transmission tuning file from AMDP, expertly calibrated via HP Tuners platform. Required: HP Tuners Send-In Service – Your vehicle's TCM (Transmission Control Module) must be unlocked