This paintjob Works only with THIS very specific Supra mod:

https://www.gtaall.com/gta-san-andreas/cars/72609-toyota-supra-trd-1998.html

To install, simply move the "modloader or gta3 img" folder to your modloader folder.
Or you can just add the "jester4" file into your gta3.img with any IMG editor.

YOU CAN ADD ANY NUMBER NEXT TO THE "jester". IT WILL ADD AN ADDITIONAL PAINTJOB, THIS WAY YOU DON'T HAVE TO REPLACE ANY OTHER EXISTING PAINTJOB YOU MIGHT HAVE.