This is my Scion tC. I haven't done any preformance modifications, but did a few idiotic flashy modifications such as adding internal black lights using CCFL lights, adding fog lights, and swapping out my headlights with retrofit HID lights. Well, I made one performance modification which was the TVM short throw shifter.
Apparently, I recently found out that one of my neighbors designs performance parts for tC's; here's hoping for cheap parts and possible testing.