2024-2025 Chevy/GMC 2500/3500 6.6L Duramax, L5P
Add Power, Improve Response, Monitor Vehicle
Banks all-new Derringer High Output tuner brings the 2024-25 Chevy/GMC Duramax 6.6L from 438 hp and 928 Ib-ft to a tire-shredding 519 hp and 1068 Ib-ft. The system provides a massive increase in torque across the working range of the engine. Merging, passing, and uphill climbs while towing are easier than ever.
The system includes your choice of the all-new iDash Pro or iDash Data Pro Powertrain Information Center, the most advanced automotive evaluation tool. The Derringer system communicates with the truck's ECM to adjust the tune in real-time, even compensating for altitude. Patented ActiveSafety circuitry protects the engine and transmission, and the Derringer is warranty-friendly, leaving no trace left behind after removal.
