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H-M04-00 HP Tuners SOTF - GMC/Chevy 6.6L Duramax 2017-2023

SKU: HPT-M04-00
Mftr. Part#: H-M04-00
Manufacturer: HP Tuners
Diesel Switch by HP Tuners lets you power up from a stock calibration to one of five custom maps with the turn of a switch. Pair with HP Tuners’ Switch on the Fly OS for complete control and performance of your diesel.

PRODUCT SPECS (click to expand)

Attribute nameAttribute value
Truck Type/ModelDuramax
BrandHP Tuners
Product TypeSwitch Accessory Kit


HP Tuners is proud to offer the world’s first integrated ECM map-switching solution for the GM E41 ECM and the Dodge Cummins CM2450 and CM2350 controllers. SOTF can store the stock calibration plus five additional maps simultaneously. Keep your hands on the wheel and select your map with the OEM cruise-control buttons. Change maps on the fly without stopping to re-flash your ECM.


  • 5’ OBDII pass-through cable.
  • Knurled aluminum switch knob and position dial.
  • Six-position rotary switch.