You're looking for a save game editor for Need for Speed: Heat. Here's what I found:
How to Use the NFS Heat Save Game Editor nfs heat save game editor link
Cheat Engine (PC): A popular open-source tool used to scan and modify values (such as money or REP) within the game's memory. You're looking for a save game editor for
Save Conversion: To use a 100% save file from another player, you must replace the User ID within that save file with your own using a hex editor or a specific Cheat Engine script to prevent "corrupted save" errors. Key Locations & Directories Local Save Files Documents\Need for Speed Heat\SaveGame\savegame\ Processor Config Fix Available on GitHub to reduce CPU usage NFS Heat Studio Official app for car customization NFS Heat Studio nfs heat save game editor link