Firmware updates via an Internet connection.īe careful with the speed limiter.Adjusting of wheel sizes, speedometers, gear ratio, transmission, cooling fan, rev and speed limiters, reads and clears DTCs, data logging, and diagnostics, monitors/records real-time stats and parameters, storing multiple custom tunes, etc.Firmware modifications or getting back to stock settings in 5 minutes.Slightly increased horsepower, torque, mileage, fuel economy, and overall vehicle’s performance.The first one is quite a compromise if you need extended diagnostic functions along with increased dynamics and reduced fuel consumption, the last one is for those who want to minimize the risk of breakages Hypertech’s firmware is quite conservative. Often, a programmer saves your stock firmware, allowing you to get back to it when you want.Įdge, PPE, Bully Dog, Hypertech are all programmer manufacturers. Such devices are mainly required for firmware, performance boost, or diagnostics. In some cases, a few diagnostic functions are also added – nozzle adjustments, fuel pressure corrections, etc. Usually, programmers allow you to adjust the size of tires, gear ratio, speed limiters, read and clear diagnostic trouble codes (DTC), etc. Programmers are devices that contain a set of ready-made firmware for the engine control module/unit – ECM/ECU, capable of writing this firmware via the diagnostic connector OBD-II port, the one on the driver’s side under the dash. Let’s consider the pros and cons of these solutions. When it comes to Duramax engines, “firmware” or “chip tuning” includes 3 completely different phenomena – programmers, chips to be installed in the wiring harness and custom firmware using EFI Live / HP tuners. DiabloSport 8200 Diesel Tuner for 6.6 Duramax.PPE 111010000 Diesel Tuner for 6.6 Duramax.HP Tuners MPVI2 M02-000-02 Diesel Tuner for 6.6 Duramax.SCT Performance 40490 Diesel Tuner for 6.6 Duramax.Hypertech 32501 Diesel Tuner for 6.6 Duramax.DiabloSport 7202 Diesel Tuner for 6.6 Duramax.DiabloSport 8245 Diesel Tuner for 6.6 Duramax.Edge Products 85400 Diesel Tuner for 6.6 Duramax.Bully Dog 40420 – Best Diesel Tuner for 6.6 Duramax.

Best Diesel Tuners for 6.6 Duramax Engine.Tuners for GM 6.6 Duramax – Comparison Chart.

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