Description 

Fits  

Year	Make	Model
2020-2023	Chevrolet	2500HD/3500HD Silverado
2020-2023	GMC	2500HD/3500HD Sierra

Note: Derringer is warranty-friendly. No reflash required, and no trace is left behind after removal.

Unleash your Duramax’s true potential with the Banks Derringer High Output tuner. This plug-and-play system delivers massive power gains and crisp throttle response while keeping your drivetrain protected. Paired with the all-new iDash Data Pro, you get total control and real-time performance insight right at your fingertips.

Part Number: 67127

Features 

• Adds +117 hp +225 lb-ft 
• Data logging
• 6 changeable power levels 
• Interfaces with OBD-II Port  
• Works while in cruise control
• AutoRate tunes in real-time 
• ActiveSafety protects engine/powertrain
• Transcommand protects transmission
• Real-time bar graph on iDash displays 
• Updated Derringer firmware 

Installation 

For Single Alternator 2023 Duramax L5P 

For Dual alternator 2023 Duramax L5P