GDP EZ Lynk Transmission Tune File T87A (2017-2019 6.6L L5P Duramax) LML *Please note: Since this is

*Please note: Since this is a brand new service

Across the lineup

and receive it back ready for tuning with VCM Suite (BETA)

or overall performance

Backed by GDP’s in-house team

GDP EZ Lynk Transmission Tune File T87A (2017-2019 6.6L L5P Duramax) LML *Please note: Since this is**MUST HAVE UNLOCKED TCM** If youre running a tuned L5P but still stuck with stock TCM mapping, you're leaving serious performance on the table. The GDP EZ Lynk T87A Transmission Tune File is the missing piece. Its built to unlock the full potential of your transmission by improving shift timing, torque management, and drivabilityno more sluggish shifts or gear hunting. This is not your average trans tune. Its built specifically for the 20172019 L5P