Once downloaded, use a tool like WinRAR or 7-Zip to extract the executable.

Right-click the application and select "Run as Administrator" to ensure it can modify your game files.

Community-sourced tools are generally safe when downloaded from reputable sites like or NFS-Planet . However, always keep a backup of your original save files and speed.exe , as improper tuning can sometimes cause the game to crash or make a car undriveable.

Modify core engine, transmission, and handling stats to create "super-tuned" versions of standard cars.