I'm going to set my tiger up with the standard airbox, do I need to do any mods? Like turn the airbox the other way round?

Which engine version ?

On my MK Indyblade I at first used ITC foam filters which were OK. I then smartened up the original Honda air box with a coat of paint and once fitted the improvement in performance was noticeable. As you suggest to get it to fit simply turn it 180 degrees, I have also run some tubing from the original intakes up the bonnet scoop to allow it the pick up cool air.

Looked better through 180 degrees my intention is to run a cold air induction pipe as well