Banks Derringer® High Output Tuner - GM Duramax 6.6L L5P (2024-2026)

The Banks Derringer® High Output is an in-line tuner for the 2024-2026 GM Duramax 6.6L L5P. It adds torque across the working RPM range to make merging, passing, and uphill towing easier. Six power levels can be changed on-the-fly, including fuel-economy, work, and max-power calibrations. Derringer communicates with the truck's ECM to adjust the tune in real time, compensating for altitude, and is controlled by the iDash Pro Powertrain Information Center with Bluetooth app. It is warranty friendly, leaves no trace after removal, and is 50-state emissions compliant.

Key features

• Adds +86 hp and +178 lb-ft at the wheels
• 6 power levels, changed on-the-fly via iDash
• Interfaces with OBD to communicate with the vehicle ECM
• Warranty friendly: no reflash required, no trace left after removal
• Works while in cruise control
• AutoRate tunes in real time using vehicle diagnostics
• ActiveSafety protects engine and powertrain
• Transcommand protects the transmission
• Real-time bar graph on iDash displays added power
• Control, monitor, and update iDash Pro wirelessly via Bluetooth
• 50-state emissions compliant

Fitment

Fits 2024-2026 Chevrolet Silverado 2500/3500 and GMC Sierra 2500 HD/3500 HD with the 6.6L L5P Duramax diesel. 50-state emissions compliant.

Installation

Installation manual and video from Banks

Banks part 67108 (with iDash Pro, no data logging), 67128 (with iDash Pro, with data logging), 67137 (Derringer only, requires existing iDash Pro).