Tune alone, I went from 266rwhp and 235rwtq stock baseline to 295rwhp and 243rwtq on the same dyno, different days, similar ambient temps.
There are plenty of others that have the same tune, but over the last two years or so, nobody has been able to do another "stock vs. tuned" dyno (provided that the ECU had enough time to fully adapt)
My highest yield was with additional bolt-ons at the time:
AA NA tune for 91 octane
RPi induction system (scoop + drop-in filter)
JVT headers
SS uncatted section1
SS x-pipe
SS race mufflers
And that put out 310rwhp and 256rwtq peaks; again, on the same dyno with similar ambient temps.
Edit: On a side note, I "extracted" the AA tune in lieu of flashing in a new tune for my VF570 SC kit about two months ago. I do miss the smoothness and overall driveability of the AA tune, but it's kind of an apples to oranges comparison since I now have much higher-flowing fuel injectors with this SC kit and the characteristics of fueling are drastically different from stock.
Edit2: Before I had VF look over my kit for any air leaks, etc. my kit put out 370rwhp and 300rwtq again on the same dyno.
It should now be around 450rwhp and 320rwtq.
RatedMRoadster's VF570 put down 472rwhp and 330rwtq on a DynoJet for reference.