ECM tuning modifies your vehicle engine control module to optimize performance, throttle response, and reliability based on real data.

Are your tunes dyno tested?

Yes. Every tune is validated using dyno testing and data logs to ensure safe and measurable performance gains.

Do you offer custom tuning?

Yes. All tunes are custom-built for each vehicle and its modifications. We do not use canned tuning files.

HP Tuner MPVI4/RTD

$399.99

Quantity

The HP Tuners MPVI4/RTD (Remote Tuning Device) is a powerful interface designed for real-time tuning, diagnostics, and data logging when used with HP Tuners software. Trusted by professional tuners and performance shops, the RTD allows seamless communication between your vehicle’s ECU and a laptop or remote tuner.

At Down Dirty 84 LLC, we use industry-proven tools like the HP Tuners RTD to deliver accurate, reliable tuning solutions for performance and drivability.

⚠️ HP Tuners software licenses and credits are sold separately.