GMC Sierra 3500 HD Tuner - Banks Power - Derringer - `17-`19. The Banks Derringer tuner is a plug-and-play performance module engineered for 2017–2019 6.6L Duramax L5P trucks to add reliable torque and horsepower across the full rpm range.

Dyno-calibrated to use multiple data inputs (throttle position, rpm, vehicle speed, AFR, knock, coolant temp and EGT) and connected via the vehicle OBD-II bus, the Derringer actively optimizes calibrations in real time with Banks’ AutoRate logic. Six selectable power levels are adjustable on-the-fly with an iDash (sold separately) so you can choose a conservative work tune or a high-output setting for performance. ActiveSafety monitoring checks module and vehicle health hundreds of times per second and will instantly bypass and return the truck to stock if a fault is detected. Cooling and knock protection reduce the risk of added power when conditions are unsafe.

Features

• Adds up to ~61 hp and ~112 lb-ft across the powerband (vehicle dependent).
• Six on-the-fly power levels via iDash; Level 3 tuned for work/ towing.
• Uses OBD-II data and AutoRate real-time adjustments for safer performance.
• ActiveSafety monitoring, coolant-temp and knock protection.
• TransCommand transmission protection; compatible with iDash DataMonster and SuperGauge.
• Plug-and-play install, removable for dealer service; DPF/DEF status and regen commands via iDash (2017–2019).

If you have questions or want help selecting the right level for towing or daily driving, call us directly at 512-982-9393 (TX) or 562-981-6800 (CA). We have two locations — Austin, Texas and the Los Angeles, California area — where we offer installation and customization services. If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov