HP Tuners RTD4

The RTD4 from HP Tuners is a powerful and streamlined interface designed specifically for remote tuning. Ideal for customers working with professional tuners like P1 Underground Tuning, the RTD4 allows you to read, write, and datalog your vehicle using your phone or laptop — no complicated setup, no guesswork.

This device supports Bluetooth and USB-C connectivity, it delivers fast data transfers and seamless communication between your vehicle and your tuner.

Key Features:

• Designed for remote tuning with P1UG

• Compatible with TDN mobile app

• Bluetooth + USB-C connectivity

• Reads and flashes custom calibration files

• Logs engine data for diagnostic and tuning feedback

• Simple, compact, and easy to use

Includes:

• RTD4 device

• USB-C cable

• Quick-start guide

Perfect For:

Customers receiving remote tunes from P1 Underground Tuning or other HP Tuners-certified professionals.

Plug in. Flash your file. Send datalogs. Hit the road.