that wud be the 60 thousand dollar question.
There have been some decent power figures from turbo a12 on here but i dont think they fall into the "fully worked" catagorey. By "fully worked" do you mean.... fully worked for the average person with the usual mods getting awsome figures which everyone congrats you on or fully worked as in i have a million sponsors and they forked out and i produced figures which just seem impossible until proven and they do time over.

There is a video of an a12 turbo powered sedan from aussie which makes sumthing stupid like 248hp or sumthing dumb like that. So we know its possible to stupid things to a series but at what cost??