TC CALIBRATIONS RTD4

The HP Tuners RTD4 is a remote tuning device used to read, flash, and data log your vehicle. It allows us to send you custom tuning files without needing the truck or vehicle here in person.

Once you receive the RTD4, you will use it to read your vehicle’s factory file and send it to us through the free TDN app. We then build your custom tune and send it back through the app. After that, you can use the RTD4 to flash the tune into your vehicle.

The RTD4 can also be used for data logging, which lets us review how the vehicle is running and make adjustments if needed. This is especially helpful for custom tuning, troubleshooting, or fine-tuning after the initial flash.

The RTD4 does not allow customers to open, view, or edit the tune file. It is only used to read, flash, and log the vehicle, which keeps the tuning file protected and prevents accidental changes.

In simple terms, the RTD4 is the tool that connects your vehicle to us remotely so we can tune it safely and efficiently.