HP Tuners RTD 4 
The HP Tuners RTD 4 is an essential tool for our remote tuning process, allowing us to collect accurate, real-time data from your vehicle no matter where you’re located. This device streams live engine and vehicle data directly through HP Tuners software, giving our tuners the detailed information needed to build, revise, and optimize your custom tune safely and effectively.
Designed for the average consumer, the RTD 4 offers fast, reliable data logging and supports additional sensors such as wideband O₂, boost, fuel pressure, and temperature inputs. This allows us to monitor critical parameters during street or track driving and make precise adjustments based on real-world conditions—not estimates.
With the HP Tuners RTD 4, remote tuning becomes simple, accurate, and efficient. Just plug it in, follow our logging instructions, and send us your data—we handle the rest.
Why We Use the RTD 4 for Remote Tuning:
Real-time data logging for accurate tune revisions
High-speed, reliable connection with HP Tuners software
Supports aftermarket sensors for advanced tuning
Compact design for easy install and continuous use
Enables safe, precise, and repeatable remote tuning results
Note: HP Tuners credits are required and sold separately.