Fits
 Year
Make
Model
Engine
2020-2023
GMC/Chevrolet
Sierra & Silverado 2500HD/3500HD
6.6L Duramax
 
The new Derringer 67102 by Banks Power is hands down the best warranty friendly tuner available for the L5P Duramax. It safely increases your torque and power gains from idle to the shift point. It's unlike your average tuner that adjusts timing and fuel, the Derringer works like your engines ECU and is constantly updating multiple data inputs every second like throttle position, RPM, speed, AFR, knock, and coolant temperature. This is why it can safely optimize and calibrate your tunes to your truck and the conditions you're putting it through, nothing else on the market is capable of that. 
 
Banks Power Part Number: 67103
 
Features:

81HP & 144ft-lb Gains!6 Power Levels on the FlyWarranty FriendlyActiveSafety Protects Engine & PowertrainInterfaces with OBDIILogs 100 Parameters at OnceSuper Gauge vs Data Monster: Super Gauge is your average Derringer Tuner, the main benefit of going with the Data Monster (Part Number: 67102) is getting the Data Logging feature. The Super Gauge is the best option for 90% of users.
 
Safety:
 
The coolant monitoring prevents power addition when your engine is too cold or too hot, the knock sensor will adjust and pull timing from low-quality fuel. This means the maximum power settings are automatic and based on how the trucks running, similar to how your ECU works from the factory.
 
Power:
 
Derringer has six switched settings. Level 6 produces Best in Class performance and knocks you back in your seat. The Level 3 setting is for work use and has a great mid-range feel. When running Level 3 with a loaded work truck and/or pulling a trailer, your on-ramp merging speeds and passing times are greatly improved.