Various forums (like Se7enSins or specialized Discord servers) often host lightweight, open-source editors specifically designed for the Horizon series. How to Use a Save Editor Safely
While modding can breathe new life into an old game, it isn't without risks. Using save editors can lead to:
Disclaimer: Editing your save violates the Microsoft Store / Xbox Terms of Service. You risk a ban if you go online with modded files. Use offline or on a secondary account.
Some popular Forza Horizon save editors include:
Using modified cars to create public content can lead to manual bans from moderators. The Ethics of Modding: Single Player vs. Multiplayer