Description
HP Tuners hardware
RTD4.
The tuner-managed interface.
RTD4 connects a supported vehicle to PCM Tuners for reading, flashing and data logging. It is the straightforward choice when you want us to manage the calibration rather than edit files yourself.
Important
- Custom tuning is sold separately.
- HP Tuners Universal Credits are not included. Register the device, then purchase the required credits directly from HP Tuners.
- Compatibility, credit quantity and unlock requirements vary by vehicle and controller.
Need both pieces? Use the GM RTD4 remote-tuning package. Already own compatible hardware? Buy the custom calibration separately. Not sure which interface fits? Compare RTD4 and MPVI4.


