: Use a tool like WinRAR or 7-Zip to extract the mod files (usually Install via ModLoader : If using ModLoader, create a new folder (e.g., modloader/TuningMod ) and paste the files there. Manual Installation : If not using ModLoader, place files into the folder and files into the main game directory. 3. Key Features of Tuning Mods Custom Parts : Add spoilers, vents, and side skirts to existing cars. Performance Upgrades

Extract the NIPI_Grand_3.5_Setup.exe from the downloaded archive. Right-click and "Run as Administrator" to avoid permission errors.