[aznatama]

If everything feels fine, you're probably fine. Aside from the balance of the internals, the only issue I can see that prevents higher revs is stuff like valve float causing the piston to contact the valves. Not sure if this is even an issue on our cars or not.

In short, if everything seems fine, you're probably okay. Not much you can do to inspect without a LOT of work that's probably not worth is. ECU most likely already recorded the over-rev as well.

Lastly, I suggest you learn pronated/neutral/supinated hand position shifting instead of "fake gated shifting." You'll be much less likely to miss a shift that way.