2024 GMC Denali L5P Build: Derringer, iDash Pro & PedalMonster
Not only is Justin Telasky one of our Test Pilots for the Derringer, but his 2024 GMC Denali has been used in the development of a few other Banks products. “Right now, I have the Derringer Tuner, the iDash Pro, the PedalMonster, the Ram-Air Intake, and the Monster Exhaust. I put on about 500 miles a week, and I’ve accumulated around 34,000 miles in the past year.”
“I absolutely noticed a difference! The truck feels so different, and it has been a flawless experience. I work as an Operations Manager in the IT Department for my company, so I look for bugs and how things perform. I’ve taken that same outlook and perspective into how I’m looking at the Derringer and PedalMonster combined. There is no comparison to anything out there on the market with the two of them combined. Turbo lag is gone, throttle is immediate, and power is strong. It’s as if the truck weighs less than it is. I stomp on the throttle, and I’m gone! And with all that power I haven’t hurt my mileage. A buddy of mine has a 2025 GMC. He drove my truck and told me that the performance of mine wasn’t even the same truck. It’s such a noticeable difference between the two, and it’s incredible.”
“I was running the iDash Classic before running the iDash Pro, and honestly… I love the new one! The addition of Bluetooth is a welcome feature and makes changing the PIDs and layouts quick and easy. I actively monitor the regens, temps and see how all the changes and combinations affect the truck. It’s all just so cool!”
“This truck isn’t just a vehicle, it’s an investment. Any Joe Schmo can come out with a product for a truck and make claims of what it can do, but I’m not going to jump on those because they were out before Banks. It doesn’t matter how long it takes, because you’re going to get a good quality product that has been thoroughly tested to not only give you power, but ensures your vehicle will be protected and not have any problems. That’s the advantage of going with Banks.”
Why the Derringer and PedalMonster Work Better Together on the 2024 L5P
While many aftermarket modifications simply trick pedal signals or alter fueling blindly, pairing the Banks Derringer tuner with the PedalMonster addresses two completely different aspects of drivability on the 2024 6.6L Duramax L5P. The PedalMonster removes the sluggish fly-by-wire lag built into modern drive-by-wire throttles, offering instant response right from idle without touching the engine’s calibration. Once the vehicle is moving, the Derringer delivers genuine calibrated power by actively monitoring real-time sensor data across the OBD-II network.
Engineered with class-exclusive ActiveSafety technology, the Derringer continuously monitors exhaust gas temperatures, coolant temperatures, manifold air density, and transmission slip. If any monitored powertrain parameter exceeds safe factory thresholds, the system seamlessly reduces its supplemental boost and fuel delivery to protect the Allison 10-speed transmission and factory emissions equipment.
Integrating the system through the iDash Pro gives drivers an interactive command center right on the dash. With built-in Bluetooth connectivity, configurable gauge layouts, and over-the-air firmware updates via the mobile app, monitoring active DPF regenerations, soot mass, and real-time powertrain health is simple, transparent, and 50-state emissions legal.
Related Duramax Upgrades & Technical Insights
- Derringer Tuner Adds Low‑End Torque to GMC Denali — Read how another 2024 Denali owner unlocked towing power and sharper throttle response using the Derringer and PedalMonster combination.
- Top‑Notch Ram‑Air Intake Design for 2024 Duramax Truck — Explore the aerodynamic testing and CAD engineering behind the enclosed Ram-Air system designed specifically for the 2024+ L5P engine bay.
- Derringer Tuner Helps Pull the Grade — Discover how the Derringer’s onboard altitude compensation maintains consistent hauling power when pulling heavy trailers through mountain passes.
- More Power Without Deleting — Learn why 50-state compliant performance calibration provides substantial power gains while preserving vehicle reliability and emissions compliance.