A TT 6spd Supra only requires dp, exhaust, and EBC to run 12's.
bean, most of the quicker mkiv's on stock twins run TTC.
I can think of one mkiv that runs a 10.9 on stock twins and spray...low 11's on stock twins with no juice has been done several times. These coupes are over 3600 lbs, have a weaker trans, and no LSD. Lots of labour and cash are needed, a couple of you make it sound like it's cake. SW's car holds the record for quickest street SC300, whereas the quickest NA-T street SC300 was the Toyomoto car AWJ mentioned, that record was set about four years ago and still hasn't been broken, so it's not an everyday occurence.
I'm going after that 10.60 run ;) So far the first time out this year I've hit a 11.1@130mp with a 1.8 60ft. This was done on BFG drag radials, so once I get a bit more practice in and try to get my 60fts down, I'll hope to be in the mid 10's.
I'll keep you posted
btw, here is my 11.1 run
http://rise.gamester.net/ct11.1.wmv
Chris