Adding power safely means accounting for more than just fuel and airflow. This tuner reads live data from the engine's sensors and OBD-II bus, then adjusts calibration in real time to keep power gains within safe limits.

Banks 66692 Derringer Tuner Overview

• Six selectable power levels, adjustable on the fly from the built-in gauge display.
• Uses throttle position, rpm, vehicle speed, AFR, knock, coolant, and EGT data like the factory ECM.
• Failsafe monitoring checks vehicle and module health 100 times per second.
• Automatically reduces power if knock or an out-of-range coolant temperature is detected.
• Fits 2017-2019 Chevy/GMC 2500/3500 HD 6.6L Duramax L5P.