A best diesel tuners | Willys Workshop  is a device that plugs into the OBD2 port and connects to your truck’s wiring harness. It allows you to run programs that fine-tune your truck’s computer systems and offers many different performance gains. The most common is an increase in horsepower and torque. The most impressive feature of these devices is that they can also improve your fuel efficiency, with some users reporting an additional 3 to 5 mpg.

The best diesel tuner for your truck depends on what you want to use it for. Some are designed to work with specific aftermarket diesel truck parts, so you’ll need to know which ones you plan on installing before you buy a tuner. Some are more user-friendly than others, and some have more precise displays.

Fuel Efficiency and Power: The Benefits of the Best Diesel Tuners

Some of the best diesel tuners include a monitor that displays real-time engine vitals, so you can see how well your truck is performing while you drive. This can help you catch any problems before they become worse, and it’s a great way to make sure that your diesel truck is always running at peak performance.

Several brands offer tuners and programmers that are compatible with the 6.6L Duramax. EZ Lynk is the most popular tuning platform, and it offers a variety of different on-the-fly tunes for your vehicle. Other options are the MM3 by Superchips and EFI Live. MM3 is a powerful tuning software that can even delete the EGR and DPF from your engine, while EFI Live is another option for Ford Power Stroke owners.