BUILT TO EVOLVE. THE MPVI4 HAS ARRIVED. The MPVI4 is the next generation of vehicle interface technology — designed to give you complete control over scanning, diagnostics, and customization in one powerful platform. Whether you're tracking down an issue, refining drivability, improving fuel efficiency, or pushing for maximum performance, MPVI4 puts the tools in your hands. With faster data logging, a stronger and more reliable connection, and a smarter internal architecture, MPVI4 delivers the responsiveness and stability today's vehicles demand. Enhanced processing power and improved communication ensure cleaner data, quicker feedback, and a more seamless tuning experience. Built for enthusiasts, technicians, and professional tuners alike, MPVI4 adapts to how you work — at home, in the shop, or on the track. It's engineered to grow with your needs, supporting evolving vehicle platforms and advanced tuning strategies. Reliable. Powerful. Ready when you are. MPVI4 isn't just an upgrade — it's the new standard. Universal Credits HP Tuners uses a credit-based licensing system. Credits are used as currency to purchase licenses for the different modules in a vehicle. Licensing a module gives you the ability to tune it. The number of credits necessary to purchase a license varies depending on the vehicle. Many vehicles are 2 credits for licensing the ECM/PCM, and may have additional options such as a TCM, FICM, or CCM. Vehicle licenses are tied to the VIN, PCM OS, and PCM Serial Number. If those values don't change, the vehicle will remain licensed on that interface and can be tuned indefinitely. One interface can store thousands of licenses and can be used to tune all the vehicles we support. Once you purchase an MPVI4 you can read, edit, and save files without purchasing credits. You don't have to license a module until you are ready to write a new file to the vehicle. The MPVI4 also offers the ability to tune remotely by sending a tune file via email. Click here for specific vehicle information FAQ What is the MPVI4? The MPVI4 is the next generation of HP Tuners vehicle interface technology, giving you control over scanning, diagnostics and customization in one platform. It offers faster data logging, a stronger and more reliable connection, and a smarter internal architecture. How does the HP Tuners credit system work? Credits are used as currency to purchase licenses for the different modules in a vehicle. Licensing a module gives you the ability to tune it. The number of credits required varies by vehicle — many vehicles are 2 credits for licensing the ECM/PCM, and may have additional options such as a TCM, FICM, or CCM. Do I need credits to read and edit tune files? No. Once you purchase an MPVI4 you can read, edit, and save files without purchasing credits. You do not have to license a module until you are ready to write a new file to the vehicle. How long does a vehicle license last? Vehicle licenses are tied to the VIN, PCM OS, and PCM Serial Number. If those values do not change, the vehicle will remain licensed on that interface and can be tuned indefinitely. How many licenses can one interface hold? One interface can store thousands of licenses and can be used to tune all the vehicles HP Tuners supports. Can I tune remotely with the MPVI4? Yes. The MPVI4 offers the ability to tune remotely by sending a tune file via email. How do I check whether my vehicle is supported? Vehicle-specific information is available on the HP Tuners vehicle list, linked above.
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