2017-2023 Duramax Peakside HP Tuners SOTF Tune File (PSP-17-23-DMAX-HP-SOTF)

Fits

Note: THESE FILES NO LONGER NEED AN UNLOCK BOX TO FLASH 19+, USING AN MPVI3, YOU ARE NOW ABLE TO UNLOCK/FLASH YOUR ECM.

Get the ultimate flexibility with Shift-on-the-Fly (SOTF) custom tuning from Peakside Performance for your 2017-2023 Duramax. These SOTF files are delivered through the HP Tuners MPVI or RTD4 interface, allowing you to switch between multiple power levels instantly to match your driving conditions. SOTF tuning is designed to maximise your truck's performance and fuel economy.

You need an HP Tuners device and credits to flash these tunes. Click here for the MPVI, click here for the RTD4 and here for the credits. (You only need one of these devices).

RTD4 Users: Once you’ve shared your stock read with your tuner in the TDN app, please email us. We’ll notify the tuning company and keep things moving.

Part Number: PSP-17-23-DMAX-HP-SOTF

• Modified Stock
• +45 HP
• +75 HP
• +90 HP
• +120 HP

Note: Higher Power levels can be written with the proper supporting modifications. Please state the desired HP level and all supporting modifications when submitting your request.

• Default Access: SOTF tuning automatically defaults to the Cruise Control Method, accessed via your steering wheel controls. (Read the User Guide Here)
• Toggle Switch Option: If you prefer a manual toggle switch for SOTF control, be sure to select the available add-on when ordering.

• SOTF functionality for instant switching between 5 power levels.
• MPVI interface allows for direct ECM unlock/flash (no separate unlock box required).
• Multiple performance levels to match your driving needs and modifications.
• Requires HP Tuners MPVI device and credits
  • Compatible with MPVI2, MPVI3, & MPVI4 Devices
• Stock reads and INFO logs required before files are built
• Designed for superior driveability and fuel economy.

• Credits Required: 6 Universal HP Tuners Credits are Required to Flash.
• MPVI Users: We require a stock FICM read with HP Tuners if using an MPVI.