CSM is a program written for GP4. Car Set Manager. Use it to load a CSM mod into GP4. To do that your GP4 must have the correct v1.02 exe, have the official patch applied and gpx installed to your GP4 installation.
Download a CSM mod and CSM will unpack it and install it. Once you have successfully installed a mod, and or a track pack using TSM, which is part of the CSM program, you can then set whatever variable you require and start the mod. It will then load the mod into the GP4 wad files, load a selected track and start gpx, where you can then make additional changes before starting GP4.
Download your choice of CSM mod and associate the file type (cuh or tup) with CSM. Then run it. Visit gp4db.com for mods.
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www.gp4central.com] <----GP4 Central