At its core, the FHL BH Editor is a "regeneration" tool. FIFA 15 stores its data in compressed "Big" (.big) and "Big Header" (.bh) files. When you add new mods (like a 2024 kit pack), the game will still prioritize the original compressed files unless you "regenerate" the BH files to tell the game to look at your new external files instead.
Download and place the FHL BH Editor executable directly into your FIFA 15 main directory (where fifa15.exe is located). fhl bh editor fifa 15 better
If you are looking to make FIFA 15 run "better" on modern or low-end PCs, combining the BH Editor with these tweaks is highly recommended: At its core, the FHL BH Editor is a "regeneration" tool