What If part 2

1. What if the Su-35BM’s AL-41 has a much higher dry-thrust then what Rus is saying, after all it can only do mach 2.3 just like the 27 why would they build a new engine (AL-41) and not have it out- perform the old ones, could it be disinformation by Russia?

2. Can the airframes of the F-22, F-15, Su-27’s sustain mach 3?????