GDP MPVI4 SOTF/Multi-Tune Support Package (2017-2023 6.6L L5P Duramax) c_cooler_upgrade If we offer S&B’s awesome

If we offer S&B’s awesome filters

or those who need to keep the truck in an optimal operating range

or guesswork required

Plug-and-Play Convenience: Features factory-style connectors for straightforward installation with minimal hassle—no splicing or complicated wiring required

GDP MPVI4 SOTF/Multi-Tune Support Package (2017-2023 6.6L L5P Duramax) c_cooler_upgrade If we offer S&B’s awesomeFor those wanting just a tune and not the actual device, we are able to offer tunes only. This requires the purchase of a new support pack for the VIN# of the new truck being tuned. Please note that this package includes the tune file exclusively and does not come with the MPVI4 device.