Banks Derringer Tuner, 2020-2023 L5P

Part# 67100

$490.00 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2020 thru 2023 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel

Stops the competition dead in their tracks. Results in torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer is dyno calibrated to use multiple data inputs such as throttle position, rpm, vehicle speed, AFR, Knock and coolant temperature, just like your engine's ECU. Its microprocessor based electronics are able to actively and safely optimize calibrations in real time. No competitive product does that. 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 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. The electronics are enclosed in a compact housing which is easily concealed and communicates using B-Bus (Banks Bus) with other devices such as our iDash 1.8 DataMonster® or iDash® 1.8 SuperGauge. The Derringer connects in line with your truck's engine sensors. But, unlike others it also connects to the vehicle's OBDII diagnostic bus connector. A CAN (Controller Area Network) transceiver chip communicates with OBDII or B-Bus allowing our microprocessor to talk with the vehicle. And, Derringer's special coolant temp watchdog prevents power addition when the engine is too cold or overheated. The Derringer also auto-adjusts power if knock occurs due to bad fuel. Maximum safe power is all automatic with a Derringer - you just choose your setting.

  • Simple plug and play installation with easy removal for dealer service
  • Warranty friendly: no reflash required and no traces left in ECU
  • Adds up to 81 hp and 144 lb-ft
  • Loaded with Features
  • Value Priced
  • Destroys the competition, not your vehicle!
  • ActiveSafety protects engine/powertrain
  • 6 power levels with on the fly level changing
  • Interfaces with OBDII Port (On-Board Diagnostics/Information) to communicate directly with the vehicle ECU
  • Log up to 20 min/max values
  • Enclosed in a compact housing which is easily concealed
  • LED Derringer status indicator
  • Works while in cruise control
  • 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
  • Corrects MAP and FRP parameter to accurate readings
  • Update Derringer software and calibration through iDash 1.8 using microSD card


  • Derringer Tuner Only, this will only work if you are running a Banks iDash already
  • Derringer Tuner With iDash Super Gauge
  • Derringer Tuner With iDash DataMonster


  • 50 State Legal, CARB EO# D-161-136
  • Adds up to +80 hp and +144 lb-ft, 6 power levels, works while in cruise-control
  • When running multiple iDash together, purchase 1 Primary and 2-3 Expansion gauges.
  • For datalogging capabilities, upgrade to iDash DataMonster.

Customer Reviews

Based on 1 review

Got this installed yesterday. I installed the derringer and idash. I’m very impressed. It’s not going to blow your mind by any means. But it definitely makes the truck stronger. It’s a noticeable difference for passing or increasing speed from say 30-50 or 50-70; and it definitely makes the truck pull much harder all the way through 90. The idash is amazing. The amount of data you can see from this little gauge is mind blowing. If there’s a sensor measuring it, you can see the reading. It’s giving you the same data you’d be getting from much more expensive scan tools. On another note, the ability to initiate a regen is very nice. We go to a lake 6 hours from here multiple times a year, when I get there I’m always in regen for a week driving around the campground. This will be very nice for getting that regen done before I get there so I don’t have to deal with that. All in all I think it’s a good buy.