Derringer L5p Tuner | Banks Power

2017-2018 Chevy/GMC 2500/3500 6.6L Duramax L5P

The Derringer L5p Tuner from Banks Power is a plug and play microcomputer for the 2017-2018 Chevy/GMC 2500/3500 6.6L Duramax L5P.

Additional Features with iDash 1.8

The gadget can be used as a standalone tuner with a power level switch or integrated with the iDash 1.8 Super Gauge DataMonster. Given the amount of science and research stuffed into this tuner, one would assume it was designed for the Mars Rover.

Watch Now: Derringer L5p Tuner

What Does This Mean For The Truck Community?

The Derringer L5P has a lot of impressive attributes to offer the truck community. Using an imagination in conjunction with the extensive list of features, it’s not hard to dream up a few scenarios where one could use this powerful invention.

derringer lp5 tuner


AutoRate® Features 
  • Exhaust Gas Temperature (EGT) – The Derringer senses your engine’s EGT and intelligently modulates fueling to maintain a safe maximum EGT, protecting your turbo and engine.
  • Altitude compensation – The Derringer senses ambient air pressure, controlling the turbocharger to maintain added boost and power as altitude increases.
  • Diesel Particulate Filter (DPF) Regen – The Derringer tuner constantly monitors your DPF regen status and will optimize its calibration to ensure the regen process completes successfully.
  • Accelerator Pedal Monitoring – The Derringer senses accelerator pedal position to roll in additional power progressively, optimizing part-throttle fuel economy and giving max power when you ask for it.
  • Coolant Temperature Monitoring – The Derringer senses coolant temp to control added power. During warmup, no power is added below 120° F, then power is ramped in and fully available above 150° If the coolant overheats for any reason, the Derringer starts removing its power at 230° F and additional power is totally removed if you exceed 240° F.
  • Full Power Timer – If set on Sport level, the Derringer allows for 30 seconds of wide open throttle before transitioning to the recommended power level for sustained tow/haul. (Our research has shown that the stock L5P when at full power will hit 1450° EGT and after a minute or so will pull out fuel to cool things down. So, we do the same thing.)
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Watch Installation Video:

Additional Features & Infographics
  • Simple plug and play installation with easy removal for dealer service
  • Warranty friendly: no reflash required and no traces left in ECU
  • 3 power levels with on the fly level changing (with switch)
  • Rugged waterproof design
  • LED Derringer status indicator
  • CARB EO applied for


Derringer lp5 tuner

Additional Features with iDash 1.8
  • 6 power levels with on the fly level changing using iDash
  • Optimized Derringer layout to view vital data
  • Regen status displayed over power level when Regen is active
  • Power added bar graph shows Derringer power being added
  • On-screen Derringer Status Indicator
  • Datalog up to 100 Derringer, engine or transmission parameters via microSD card
  • Corrects MAP and FRP parameter to accurate readings
  • Update Derringer software and calibration through iDash 1.8 using microSD card
  • Expand system with other Banks Bus products
  • Ambient Air Density Module
  • 4-CH Analog Sensor Module*
  • 4-CH Thermocouple Module*
  • Advanced Water Methanol Module*



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Gale Banks Engineering





(800) 601-8072


546 S Duggan Ave.

Azusa, CA 91702

ABOUT Gale Banks Engineering®

Banks Power is a division of Gale Banks Engineering, now in its 58th year, created by Southern California hot rodder and automobile engineer Gale Banks. Banks is best known for the advanced development of turbochargers and high performance diesel engines targeting the automobile and marine aftermarket, and military customers.