I'm looking to change the default tire wall brands in Formula USA 2003 to something custom, but I'm not having any luck in loading in the game. For reference, I can create Preview, Body and Spec .DDS files and they work well, but I just don't know how to reference the tires. So far I have tries these, which AI advised: <TYRE_TEXTURE PATH="AudiRacing\sidewall60.dds" /> <TEXTURE NAME="SIDEWALL_F" PATH="AudiRacing\sidewall60.dds" /> But have also tried these, which come straight out of the _dist xml file: <TEXTURE NAME="TIREDIFF" PATH="AudiRacing\sidewall60.dds" /> <TEXTURE NAME="TIRENORM" PATH="AudiRacing\sidewall60.dds" /> None of these work, the cars always loads up with the default Firestone tires. I've also tried saving as a DXT1 and DXT5 compression, with no luck. I took the default tire_firestone_indy.psd template from Reiza forums and modified that with my new graphics. Does anyone have any tips, or know of any guides to get his working?