For the uninitiated, navigating the world of GTR2 mods can be daunting. It is highly recommended to maintain for different mods to prevent file conflicts, especially since a single mod can be several gigabytes in size.
Download your chosen WEC mod pack from trusted sim racing community hubs (such as RaceDepartment, eSport-Racing, or dedicated driving communities). Extract the archive using 7-Zip or WinRAR.