By Harrison15 / hkvideogamer / RedCarDriver.

This .ZIP archive contains mods for the Lexus IS350, to make it into an IS F. I can't help you if you want to make it say "IS F" in game (you do this yourself; I've done it for myself but the file for it is hard to include), and it's impossible to change the performance, but everything else is here.
Source: TDU; NFS MW for the sound.