New Derringer for 2020-2023 DMAX 6.6L

The new Derringer High Output for 2020-23 Chevy/GMC Duramax 6.6L adds a whopping +117 hp and 225 lb-ft , up from 81 hp and 144 lb-ft on the previous generation. The increased power is possible thanks to additional sensor inputs, new engine calibration, and impressive computational power of the all-new iDash Pro. The new iDash Pro Powertrain Information Center features a new high-res screen viewable at greater angles, wireless updates, expanded internal memory, 25% faster data logging, as well as 6 direct-connect external sensor inputs with additional features coming soon.

Derringer HO has 6 power levels, adjustable on-the-fly, with a best gain of +117 hp pushing well above 520 wheel hp to the road. The massive increase of +225 lb-ft of torque is situated right in the heart of the power band where you need it most. Level 6 produces best-in-class performance, while Levels 2-4 are optimized for work use with great mid-range feel with a loaded truck or towing a trailer.

Standard in all Banks tuners is AutoRate, which intelligently provides maximum safe power by monitoring boost, RPM, speed, gear, EGT, coolant temp and even adjusts for altitude. Our patented ActiveSafety features protect the engine with its self-monitoring hardware, avoiding the dreaded “reduced engine power” condition caused by other tuners. TransCommand protects the transmission with intelligent power delivery for slippage prevention and smooth shifting. No competitive tuner does that.