Using the editor requires a standard USB flash drive and access to a computer. According to guides from GTPlanet and GBAtemp , the process generally follows these steps:
Copy the modified save back to your PS3, overwriting the existing data. When you launch GT Mode, your changes should be visible. Compatibility and Troubleshooting GT5-Garage-Editor-V131
Recovering lost DLC or gift cars for players who can no longer access the PlayStation Store for Gran Turismo 5 . How to Use the GT5 Garage Editor Using the editor requires a standard USB flash
Organizing large car collections (up to and even beyond the 2,000-car limit) and managing paint chips and horns. This acts as a fallback in case the save becomes corrupted
Before opening the editor, manually copy the save data folder on your PC. This acts as a fallback in case the save becomes corrupted.
Modifying internal car settings, such as hex codes for colors and "breaking in" cars to achieve maximum horsepower immediately.