2020-2023 Duramax L5P AMDP EZ-Lynk Support Pack

Fits

Note: This is the tuning support package only; You must already own an EZ-Lynk AutoAgent 3. Optional TCM Tuning available as well!

Unlock the full potential of your 2020-2023 Chevrolet Silverado or GMC Sierra equipped with the 6.6L L5P Duramax engine using AMDP's premium custom tuning delivered via the industry-leading EZ Lynk AutoAgent device. Their expertly crafted tunes deliver enhanced horsepower, torque, throttle response, and drivability while maintaining reliability for daily driving, towing, or performance applications.

• Custom-Calibrated Power Levels: Single power levels tuned for your specific setup (SOTF capability coming soon).
• Cloud-Based Access: Immediate access to AMDP's full library of tunes via the EZ Lynk cloud—no waiting for file deliveries.
• Transmission Tuning (T93): Optimizes shift points, torque management, and line pressure for smoother, firmer shifts.
• OBD Port Flashing: Conveniently unlock and flash the T93 controller directly via the OBD port with no additional hardware required.
• Broad Compatibility: Supports both Pickup and Cab & Chassis models (excludes L5D Kodiak/International).

• AMDP Custom Tuning Support Package (Limited or Full)
• Access to AMDP Cloud-Based Tune Library
• T93 Transmission Tuning Calibration (Optional TCM Tuning Available)

• Requirements: Requires an EZ Lynk AutoAgent 3 device, a compatible smartphone (iOS/Android), and CAN-Bus plugs for vehicle communication.
• Support Packages: Limited Support provides 4 weeks of access; Full Support provides unlimited access and future updates.
• Custom Applications: For trucks with FASS systems, CP3 conversions, or aftermarket turbos, please contact support for fully custom-built files.

• Step 1: Purchase the support pack for your desired time frame.
• Step 2: Clear any existing dash codes and, if possible, reset DEF levels.
• Step 3: Plug in the EZ Lynk device and "Accept" the autolink prompt from AMDP Custom Tuning.
• Step 4: Select and flash the file that matches the model year displayed by the EZ Lynk app.

Installation Tip: It is recommended to fill the DEF tank and perform a DEF level reset using a scan tool prior to flashing.