GDP MPVI4 TCM Support Package (2017-2023 6.6L L5P Duramax) LB7 reduces flare

reduces flare

7L Ford F250/F350/F450

crisper shifts under load and at WOT✔ Reduced gear hunting and improved towing manners✔ Unlocks true torque potential of your L5P

These kits use American made parts

7L Cummins (AISIN only) enhances your transmission’s functionality

GDP MPVI4 TCM Support Package (2017-2023 6.6L L5P Duramax) LB7 reduces flareFor 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.