The Leader in Diesel Performance
Banks Test Pilot Matt Rhoades adds the Derringer tuner to his 2024–25 GMC Denali, unlocking powerful low-end torque and seamless performance—tow-friendly and emissions-compliant.
After upgrading his 2023 diesel Jeep Gladiator with a Derringer tuner, PedalMonster, iDash, and Stealth Pod, the host of Gear Jammer Garage saw a major boost in power — and even unexpected MPG gains.
Not all tuners are safe. Gale Banks explains the dangers of inline tuners and why the Derringer is the only smart choice for diesel tuning and protection.
Roger Christensen’s 2004.5 GMC Sierra Duramax LLY shows why Six-Gun Duramax Tuner Upgrades deliver +115 hp, smoother throttle response, and decades of rock-solid reliability.
Prioritizing fluid maintenance—such as engine oil, transmission fluid, and coolant—is essential before pursuing performance upgrades, ensuring reliability and longevity for your diesel truck.
Banks Power invites satisfied customers to share their experiences by leaving a Google review, helping others discover the benefits of their diesel performance products.
Banks is developing a new Derringer tuner for the 2024-2025 Chevy/GMC Duramax 6.6L. While specific horsepower and torque gains are still being finalized through rigorous testing, the new Derringer will leverage Banks’ advanced tuning capabilities and iDash integration to provide significant performance improvements. Like previous Derringer models, it is expected to offer multiple on-the-fly adjustable power levels and incorporate Banks’ safety features to protect the engine and transmission. Further updates and official specifications will be released as testing progresses.
Ryan Johanson, a 2021 Duramax owner, upgraded to the Derringer High Output and iDash Pro and was extremely impressed with the increased power, describing it as “ungodly.” He also highlights the ease of use of the iDash Pro with its Bluetooth updates, and the reliability of the PedalMonster compared to other throttle controllers.
The Banks Tuning Bundle for 2020-2023 Duramax 6.6L includes the Derringer High Output (+117 hp, +225 lb-ft), iDash Data Pro, and PedalMonster. It offers adjustable power levels, real-time tuning, engine/transmission protection, and enhanced throttle response.
The Banks Tuning Bundle for 2020-2023 Duramax 6.6L includes the Derringer High Output (+117 hp, +225 lb-ft), iDash Data Pro, and PedalMonster. It offers adjustable power levels, real-time tuning, engine/transmission protection, and enhanced throttle response, all controlled via the iDash Data Pro.