• Adds up to hp and lb-ft
• 6 power levels that can be changed on-the-fly via iDash.
• Simple plug-and-play installation with easy removal for dealer service
• Interfaces with OBD-II Port (On-Board Diagnostics) to communicate with vehicle's ECM
• Warranty friendly: no reflash required and no traces left in ECM
• Works while in cruise-control
• AutoRate tunes in realtime using vehicle diagnostics
• ActiveSafety protects engine/powertrain
• Transcommand protects transmission
• Real-time bar graph on iDash displays Derringer's added power
• Update Derringer firmware, calibration through iDash using microSD card

Results in torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer is dyno calibrated to use multiple data inputs such as throttle position, rpm, vehicle speed, AFR, knock, coolant temperature, and EGT, just like your engine's ECM. It actively and safely optimizes calibrations in real-time thanks to its OBD-II connectivity. No competitive tuner does that.

Derringer has 6 levels, adjustable on-the-fly using the iDash. Level 6 produces best-in-class performance. Level 3 is designed for work use and has a great mid-range feel. When running Level 3 with a loaded truck and/or pulling a trailer, your on-ramp merging speeds and passing times are greatly improved.

The electronics are enclosed in a compact housing which is easily concealed and communicates with other Banks devices such as our iDash DataMonster, iDash SuperGauge, and PedalMonster throttle booster. The Derringer connects in line with your truck's engine sensors. But unlike other tuners, it also connects to the vehicle's OBD-II diagnostic bus.

ActiveSafety health monitoring circuitry keeps an eye on the vehicle and the module itself. It checks its health 100 times a second. If it detects an issue, the Derringer instantly bypasses itself, sets a device diagnostic code, and seamlessly returns the truck to stock power. Plus, Derringer's special coolant temp monitoring prevents power addition when the engine is too cold or overheated. The Derringer also auto-adjusts power if knock occurs due to bad fuel. Maximum safe power is all automatic with a Derringer — you just choose your preferred power level and enjoy the ride.

New for 2024

Fresh off the production line for the 2024 model year, Banks Engineers have already begun testing and benchmarking the all-new Gen 2 L5P Duramax.

With a wide range of internal engine and external fitment changes, careful benchmarking and testing of all parts has to be done.

Sustained Power

While at first glance, the engine bay looks similar to the previous generation, the Gen 2 L5P features a new VGT Controller, additional sensors, and the all-new Global B ECM platform with a new tune.

Higher sustained horsepower and torque output for work, tow, and fun is already being tested with the new l5P engine management as a new harness and calibration are needed.

Even though GM has raised factory engine output even higher than the previous generation, Banks Electrical Engineering Department and Test Group are confident higher sustained output can be achieved with supporting airflow improvements.

Drivability Tuned

Our Test Group Engineers carefully monitor all sensors within the CANBUS when developing a new tune to ensure proper engine and transmission performance that does not cause problems with reliability and daily drivability.

Derringer uses ActiveSafety^® health monitoring circuitry keeps an eye on the vehicle and the module itself 100 times a second.

Maximum safe power is all automatic with a Derringer — you just choose your preferred power level and enjoy the ride.

AutoRate® Dynamic Tuning

• Exhaust Gas Temperature (EGT) — Monitors EGT and intelligently modulates fueling to maintain a safe maximum EGT, protecting your turbo and engine.

• Altitude compensation — Senses ambient air pressure, controlling the turbocharger to maintain added boost and power as altitude increases.

• Diesel Particulate Filter (DPF) Regen — Monitors your DPF regen status to ensure the process completes successfully.

• Accelerator Pedal Monitoring — Rolls in additional power progressively, optimizing for both part-throttle fuel economy and max power when you ask for it.

• Full Power Timer — Allows for 30 seconds of wide-open throttle before transitioning to the recommended power level for sustained tow/haul.

TransCommand® Active Transmission Safety System

• Intelligent Shift Tuning — Senses ambient air pressure, controlling the turbocharger to maintain added boost and power as altitude increases.

• Boost and Fuel by Gear — Monitors your DPF regen status to ensure the process completes successfully.

• Accelerator Pedal Monitoring — Rolls in additional power progressively, optimizing for both part-throttle fuel economy and max power when you ask for it.

• Tuned Hydraulic Pressure — Allows for 30 seconds of wide-open throttle before transitioning to the recommended power level for sustained tow/haul.

ActiveSafety® Health Monitoring

The Derringer is the only tuner available that includes Active Safety® health monitoring circuitry.

• Internal diagnostics check system 100 times per second.

• Checks MAP and FRP signals and monitors CPU activity

• Activates in event of failure or loss of 12V power
Bypass relays smoothly return stock power with no loss of power or "Limp Home" Mode.