IJgser N ireland has government run test centres the procedures are generally the same between UK and here but there are differences
Jacro Leave it on The only thing you have to be careful of is that your tail pipe does not say "Not for Road Use" end of story
And of course the rest of the bike is road legal!
HID headlamps can be a bastard to get a pattern on their machines so if you have those it may be worth going back to standard for the test