2017-2023 Duramax L5D AMDP HP Tuners Custom Tune File

Fits

Unlock the maximum capability of your medium-duty 4500-6500 Duramax with precision-engineered calibration from AMDP. This custom HP Tuners solution transforms your L5D from a restricted workhorse into a high-efficiency powerhouse, delivering up to 150 HP gains while optimizing throttle response and heavy-duty towing performance.

Part Number: L5D-HP-1

• Increased Power Options: Choose from 0-150 HP over stock horsepower gains, allowing you to select the perfect level of performance enhancement without compromising durability.
• Shift-on-the-Fly Capability: Seamlessly switch between tune levels on the go, adapting to different driving conditions like towing, highway cruising, or off-road demands.
• Transmission Tuning Available: Fine-tuned transmission settings for smoother shifts, improved torque management, and better overall drivability, ensuring your truck handles the extra power effortlessly.

Requirements:

• MPVI Device: An HPTuners MPVI interface is required for flashing and data logging. This is the industry-standard tool for precise ECM modifications.
• Cab-Bus Plugs: Essential for simulating cab functions during the tuning process on these chassis cab models.

• The HP Tuners Universal Credits are required to license the ECM/TCM.
• Designed for off-road/competition use only.

How it works

You will need to read the stock file of the truck with the HPTuners MPVI4 Device. Once you send us the stock file, we can send you the custom tuning for your truck. It's a very quick and easy process and will come with step-by-step instructions.

Installation Instructions:

• Click here to view Tuning Instructions
• Click Here For SOTF Installation Instructions