GM Diesel Technician Loves Derringer Tuner
“It’s a different truck!” exclaims Steven Laperriere. The GM Diesel technician can’t contain his feelings on what the Derringer has done to his ’24 GMC’s performance. “This truck is a daily driver, and I had about 26,000 km on it before I installed the Derringer, and now I have around 32,000. I noticed a huge difference in power my first time driving it with the Derringer. I look forward to the additional torque every time I step on the throttle. I tow a 32-foot bumper-pull trailer, and having the Derringer installed makes towing effortless!”

“I’m a GM Diesel tech, and I’d recommend the Derringer to anyone who has a Duramax. “The fact that I can have all of this added power and it doesn’t change any of the factory calibrations, AND I still have my warranty. I don’t see why ANYONE would go another route. It’s so intelligently done, with Banks using the engine’s own sensors to produce more power without modifying anything in the ECM. We get a lot of guys coming here to the install department wanting to do deletes, and it doesn’t make any sense when you have an option like Derringer. You keep everything on truck, stay legal, and the performance is outstanding.”

“With the iDash Pro, I have the Derringer control on it. When I’m towing I can keep an eye on temperatures and soot levels in my DPF. Honestly, everything, including something as simple as being able to change the colors of the elements on the screen, is just so cool. I don’t even think that there’s anything Banks missed on it.”