Well that website says 2006 Subaru WRX STI 4.5 13.0 MT Dec '05) for my car. That is stock I suppose? I knew that my 0-60 was in the ballpark of 4.5 but never wondered about the 1/4. I would guess with my mods I'm in the mid to high 12's.
Being that I have never actually taken it to the strip I don't know an actual time for you guys. Also, like foxy said, take into consideration that this isn't at all what the STi is made for.