2020–2023 L5P Duramax SOTF Calibration Support Pack

2020–2023 L5P Duramax SOTF Calibration Support Pack from Automotive Innovations. Switch-on-the-fly (SOTF) ECM calibration only; a standalone 5-tune pack is not offered for this application.

Choose your support: SOTF with 4-week support or SOTF with lifetime support. ECM and switching hardware compatibility will be verified before calibration.

HP Tuners: Stock ECM readout required. Provide VIN, tire size, complete modifications list and stock readout.

EZ LYNK: Stock readout not required. Provide VIN, tire size and complete modifications list.

Transmission tuning is not included unless expressly selected or quoted separately. Typical turnaround is within 48 hours after all required information is received. Revisions are handled case by case. Custom calibration service, not an instant download; all work must comply with applicable laws.