Hmmm....i understand what you guys are saying.
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If you look at these dyno runs.
Look at, around the 120kph[blue] & 140kph[red]. (or is it 105 & 110) You will notice that VTEC engages earlier.
The only changes i had done in between before & after were, cat back to full exhaust, and a change of plugs.
My mechanic told me the change of plugs i got done elsewhere, were the wrong ones. And he changed them again.

But still, VTEC engages at the same place WOT.