One of the local Minnesota tuners (RS Motors) had a new GT-R on their dyno. It did 503hp @ the rear wheels with "a few bolt ons". They didn't go into details about what those bolt ons were. Here's a video of it on the dyno if you want to take a look. You don't see it's numbers in this video. [ http://s269.photobucket.com/albums/jj47/rsmotors/?action=view ]¤t=gtrpics016.flv