2020-2022 GMC 3.0 DURAMAX LM2 TRANSMISSION ONLY TUNING

If you have engine tuning from a competitor but want to add trans tuning, this would be what you want to select.  This is transmission only tuning. 

If you have a commander flash tool and the required credits, simply order the tuning by itself. 

If you do not have a commander flash tool or T87A harness, you will need to add those options from the list.   4 credits are required.  If you do not have them, please add them. 

• Extended transmission life, increased fuel economy, and better driving experience 
• Increased line pressure and shift parameters that would reduce shift times, slip etc follow actual torque models in ECM and TCM
• This strategy increases fuel milage, reduces duty cycle wear, eliminates harsh or random inconsistent shifts or characteristics that do not match the drivers request, input or desired feel
• This is why it is important the engine calibration be done correct or our transmission calibrations be paired with our engine calibrations as the models have to mimic each other
• All calibrations match the increased torque as well as earlier torque to apply it most efficiently
• Refined shift points to get rid of the low rpm lazy feel at low driver inputs cruising or towing waiting on the turbo to spool that usually results in a lot of pedal travel and down shift
• Tire size, gearing, and larger turbos this is a must to tailor to that specific mod
• Earlier converter lock up to use increased torque & increase fuel milage as well as reduce temps
• Earlier unlock & downshift eliminates lag from time of driver input to acceleration
• Torque converter OEM partial lock or locked shifts to remove flare feel during shifts
• TC feel can be stock or increased for less slip to lock time in 2-6 gears