275rwkw on the E85 with near factory response, which is plenty for the street. Such a reliable car/engine - I've only changed the timing belt as preventative maintenance and give it stick all the time, still runs like new.
I'll send you a pic or two, but haven't changed much externally, just different wheels. Loved the way it looked as it was. Though it did cop a little hail damage during the big hail storms a few years ago
Now have a 33 GTR to focus on and keep the GTS-T as the reliable daily / HSV killer haha