Unlock the full potential of your Duramax with the Banks Derringer High Output Tuner. Designed specifically for 2024-Current Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the 6.6L Duramax L5P, this intelligent tuning module safely delivers up to 86 additional rear-wheel horsepower and 178 lb-ft of rear-wheel torque, providing stronger acceleration, easier overtaking and improved towing performance.

Unlike conventional plug-in performance modules, Derringer communicates directly with the vehicle's ECM through the OBD-II network, continuously monitoring engine operating conditions and dynamically adjusting power output in real time. This intelligent approach delivers consistent performance while helping maintain factory reliability.

Banks' exclusive AutoRate® Dynamic Tuning automatically adjusts power based on engine load, coolant temperature, exhaust gas temperature and altitude to maximise safe performance. ActiveSafety® performs internal diagnostics up to 100 times per second to help protect the engine, while TransCommand® manages torque delivery during Allison 10-speed gear changes to help safeguard the transmission under heavy towing or demanding driving conditions.

This version is designed for customers who already own a Banks iDash Pro or iDash Data Pro. It does not include an iDash display, making it the ideal upgrade if you're transferring a compatible iDash from another Banks system. Installation is fully plug-and-play with no ECU reflash required, leaving no footprint in the factory ECM after removal.

Key Features

• Genuine Banks Derringer High Output Tuner
• Up to +86 rear-wheel horsepower
• Up to +178 lb-ft rear-wheel torque
• Six selectable power levels
• Adjustable while driving via existing iDash
• AutoRate® Dynamic Tuning
• ActiveSafety® engine protection
• TransCommand® transmission protection
• OBD-II communication with factory ECM
• No ECU reflash required
• Leaves no trace in factory ECM after removal
• Plug-and-play installation
• 50-State emissions compliant
• Genuine Banks Power product
• Part Number: 67137

Compatibility

Chevrolet

• Silverado 2500HD (2024-Current)
• Silverado 3500HD (2024-Current)

GMC

• Sierra 2500HD (2024-Current)
• Sierra 3500HD (2024-Current)

Engine

• 6.6L Duramax L5P Turbo Diesel

Fitment Notes

• Requires an existing Banks iDash Pro or iDash Data Pro.
• Does NOT include an iDash display.
• Not compatible with iDash SuperGauge or iDash DataMonster.
• Six selectable power levels.
• Compatible with Allison 10-speed automatic transmission.
• No ECU reflash required.
• Leaves no footprint in the factory ECM after removal.
• 50-State emissions compliant.