Not sure what sections you have been looking in because there are ton of tuner threads. What engine are you looking for? The EB is putting at some sexy numbers with tuning alone. The drive modes on mine act like they did stock but just all have more power
This is more towards the V8. I guess I just haven't seen a lot of users post their differences. A stock vs tune video would be great but I definitely haven't seen those around. It is one thing to say something is out and people are happy about it but I want to see videos vs stock auto. Seeing and hearing the shift difference, etc.
Well the proof is in the track times/dyno charts, maybe focus on the dragstrip section. Also most tuners will make changes to the shift firmness/patterns at your request so it's not set in stone