Universal Credits for MPVI and RTD Devices
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 (or us) the ability to tune it. The number of credits necessary to purchase a license varies by vehicle.
Not sure how many credits you need?
You can find a complete list of supported vehicles and credit cost on the HP Tuners supported vehicle list here: https://www.hptuners.com/vehicles/ford-tuning/
How does it work?
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. Importantly, Additional Tunes do NOT require the purchase of credits.
- One interface can store thousands of licenses and can be used to tune all the vehicles we support.
- You can read, edit (MPVI-only), 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 MPVI also offers the ability to tune remotely by sending a tune file via email, or using the TDN App.
- These credits are also compatible for licensing RTD Devices to modules (or vehicles)- including the RTD, RTD+, RTD3, and RTD4, which are not capable of editing tune files.
Please Note: Credit assignment is not always immediate at the time of purchase, as payment processing and fulfillment can take a short period to complete. This is normal behavior and does not indicate an issue with your order.
To activate Universal Credits for your MPVI:
- Download and install the latest version of VCM Suite Beta from HP Tuners: hptuners.com/downloads
- Connect your MPVI to your laptop/PC.
- While connected to the internet, load VCM Editor and select HELP, then RESYNC INTERFACE.
Reminder: You must be connected to the internet as this process will also update your MPVI firmware to the latest version.
To activate Credits on your RTD:
- Typically, no action is needed since credits are assigned by device serial number and sync automatically when connected to HP Tuners Servers.
- However, if you encounter a credits-related error when flashing tunes with your RTD, please open the TDN App and navigate to Tools > Resync Interface
Should you have any issues, please contact sales@tunedbyzfgracing.com and include your order number(s), Device Serial Number(s), and any screenshots that might be helpful.
NOTE: All digital product sales including credits are final, under no circumstances can a refund be given for any digital products.
Please ensure you check how many credits you have and require before you complete your purchase.
Important: ZFG Racing does NOT sell or ship to the State of California.
Orders shipping within the Continental USA can be placed directly through our website. Shipping charges will be automatically calculated at checkout once a valid shipping address is entered.
We are happy to accommodate orders outside the Continental USA whenever possible, including Hawaii, Alaska, U.S. Territories, APO/FPO addresses, and select international destinations. To place an order for any of these locations, please submit a Request for Invoice and include your full address (city, state/province, and postal/ZIP code).
Tracking information and order updates will be sent via email and can also be viewed in your ZFGR Account → Order History.


















