2024 Duramax Programmer. Tuning switches, mounts and knobs are also available for your vehicle. Derringer is dyno calibrated to use multiple data inputs such as throttle position, rpm, vehicle speed, afr, knock, coolant temperature, and egt, just like your engine's ecm.

Our pulsar v3 tuning module takes that progress a step further! This diesel performance module is designed for fuel economy with up to 45 horsepower increase in hp and fuel savings up to 10%.