DSP5 SOTF Switch

The Spelab DSP5 SOTF Switch is a high-performance tuner designed for 2011-2016 LML 6.6L Duramax trucks, enabling seamless integration with EFI Live's DSP5 tuning system. This switch allows drivers to toggle between five custom-tuned programs in real-time, eliminating the need for OBD2 reflashing. Constructed with premium materials, it features a durable knurled aluminum knob for enhanced grip and high-temperature wiring protected by split loom, ensuring it can withstand demanding engine bay conditions. The driver-centric design allows for convenient mounting inside the cabin, including the dashboard, switch panel, or center console, offering smooth and reliable tuning transitions. The package includes detailed wiring instructions with color-coded leads, connecting the yellow wire to ECM Pin 11 and the black wire to ECM Pin 35. It is important to note that this switch requires the vehicle to be preloaded with an EFI Live DSP5 tune or EZ LYNK that supports multiple maps. The product is intended for off-road use only. This switch is specifically designed for the 2011-2016 Chevrolet Silverado and GMC Sierra LML Duramax trucks. It is essential that your vehicle is already equipped with compatible EFI Live DSP5 tuning to utilize the switch's functionality.