These compact switches provide substantial adjustability. By simply turning the dial left or right until it clicks, you can command your truck to deliver either more or less horsepower and torque. This functionality is contingent upon the successful flashing of the Engine Control Module (ECM) with SOTF tuning software. Depending on your vehicle’s specifications, our switch will interface with your truck’s Fuel Temperature Sensor, Crank Case Pressure Sensor, or Intake Air Temperature Sensor.

**Note:** These are switches and do not include any tuning software. To obtain the desired performance, you must install our EFI Live Tune Package.