Brand Tuners MPVI4 OBDII Diagnostic Interface - USB-C MPVI4, Fast Logging & Tuning

The HP Tuners MPVI4 is a high-performance OBDII interface that reads and logs vehicle data, supports tuning with VCM Suite, and offers faster, more reliable connections for garages and enthusiasts.

The MPVI4 is the latest generation diagnostic interface from HP Tuners designed for hobbyists, professional tuners, and DIY mechanics who need rapid data capture, dependable module communication, and compatibility with thousands of vehicles. It combines a faster processor, more memory, and an improved tapered OBDII fit for a secure connection—delivering near-wired performance for standalone logging and real-time diagnostics when paired with the free VCM Suite software.

How does the MPVI4 improve data logging and diagnostics?

MPVI4 raises the ceiling for independent logging by expanding bandwidth and memory, letting you record more parameters at higher speeds without dropping frames. That translates into clearer data for troubleshooting, performance tuning, and repeatable results during testing.

• Dual-core 1.7GHz processor and 1GB RAM for smoother data handling
• High-speed standalone logging comparable to wired solutions
• Expanded parameter capacity for richer, longer sessions

Which vehicles and systems will the MPVI4 work with?

MPVI4 supports thousands of vehicle years, makes, and models across cars, trucks, and powersports platforms. It communicates with multiple control modules to read DTCs, view live diagnostic data, and upload or download calibrations when used with licensed credits and compatible controllers.

• Compatible with 40+ manufacturers, including late-model muscle and daily drivers
• Reads DTCs and displays live engine and transmission parameters
• Some ECM/TCM/FICM/FSCM/CCM functions may need separately purchased credits

What connectivity and software features should I expect?

Out of the box, MPVI4 connects via USB-C; future firmware updates will enable faster Wi‑Fi transfers for quicker file handling. The device works with the free VCM Suite (VCM Scanner and VCM Editor included) to manage diagnostics, logging sessions, and tuning workflows.

• Includes USB-C cable; Wi‑Fi transfer speed improvements incoming via firmware
• Free VCM Suite download (Scanner and Editor tools included)
• PRO features like standalone logging and PROLINK+ compatibility are built-in

Do I need credits or extra hardware to use all features?

The MPVI4 package ships with 0 credits, which lets you use diagnostic functions but not license certain controllers. Credits are available separately to enable ECM/TCM and other module flashing. Additional accessories such as PROLINK+ are sold separately for advanced setups.

• 0 credits included—purchase credits to license vehicle controllers
• Check the HP Tuners supported applications list for credit and vehicle notes
• PROLINK+ and other accessories sold separately for extended capabilities

Who this is for: The HP Tuners MPVI4 suits enthusiasts, shop technicians, and performance tuners who need a compact, durable OBDII interface that speeds up diagnostics and data capture. If you rely on accurate logging, plan to flash calibrations on supported modules, or want future-ready wireless transfers, the MPVI4 is built to fit professional workflows and home garages alike.