GDP Commander W/ GDP Support Pack (17-23 GM L5P Duramax)

Includes 12 tuning credits, device and tune file(s).

• 8 Credits - Engine tuning
• 4 Credits - ECM Unlock

Fitment

2017-2023 6.6L Duramax

Note

Works with L5P and L5D trucks.

Tune files are built to order and are typically completed within 24-48 hours, however depending on the current order volume of the tuners please allow up to 1-3 business days to ensure your files are completed by when you need them! Highly modified vehicles have longer wait times due to their complexity, wait times on these applications can be 1-5 business days.