Collection: EFI Live AutoCal SOTF Switches

SOTF Switch​ for GM & Cummins Engines upgrades your GM Duramax (2001-2016) or Dodge Ram Cummins 6.7L, 5.9L (2007-2021). Ideal for custom tuning with on-the-fly adjustments. Designed for LB7, LLY, LBZ, LMM, and LML Duramax engines. Supports DPF, DEF, and EGR deletes to boost horsepower, torque, and fuel efficiency. Perfect for diesel performance enthusiasts, offering easy installation and reliable control for optimal power.