ECU programming

[Mental Trousers]

I reckon if you're going play around tricking the ECU into doing something different to gain performance, then you might as well do it properly.

Tricking what?? The holes in the torque/power curves to meet emissions standards are the trick. Less fuel = less bang = less noise. Eliminating the holes is undoing the trick.

Also if you want to eliminate the power loss created by emission controls then it would make sense to remove the physical controls choking things up as well, such as the cat converter, which then makes the bike modded.

As above, often the power loss due to emissions controls is due to the manufacturer setting the ECU to squirt less fuel at certain points. They're different from the effects of a cat etc. You can lose the holes without losing the cat or other hardware.