Open the gta3.img file located in your rockstar/gtasa/models/gta3.img with IMGTOOL, go to edit find, type in pcj600, once you locate the files click and highlight them, then right click choose replace, find the zip folder with the file dff for dff and txd for txd. exit. load gta sa find your new Yamaha R1, and have fun! ~VC1976JLN