Mercenary Autocal tuner for your LBZ equipped vehicle. Tuner comes with 5 power levels that are switch on the fly. Power levels vary by year model. Select to add a DSP-5 switch so you can change levels with the turn of a switch. or if you are using an Edge Insight to switch tunes please select the SERIAL option.
Switch must be wired directly into the ecm wiring harness for the DSP5 switch to work.
Must Provide: Model Year, VIN #, Any Mods, Transmission (Auto or Manual), Regular Pickup or Cab & Chassis, Short or Long Bed, and Tire Size