GDP MPVI3 Support Package (2017-2021 6.6L L5P Duramax)

8 Tuning credits included.

Fitment

2017-2021 6.6L Duramax

Note

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.

HP Tuners tuning credits are required to load tuning into the vehicle if you have not already purchased credits

Works with L5P and L5D trucks.