
Sale! DescriptionFitsYearMakeModel2017-2023ChevroletSilverado 2500/3500 HD2017-2023GMCSierra 2500/3500 HDNote: 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 Shif
Fits
| Year | Make | Model |
| 2017-2023 | Chevrolet | Silverado 2500/3500 HD |
| 2017-2023 | GMC | Sierra 2500/3500 HD |
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 youve shared your stock read with your tuner in the TDN app, please email us. Well notify the tuning company and keep things moving.
Part Number: PSP-17-23-DMAX-HP-SOTF
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.
Standard Shipping
Cost: $25
Free Shipping
We offer free shipping on orders over $30. Please check the free - shipping eligibility at checkout.
Delivery Time:
It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.
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