you don't need to drill a 16v box mate there is a little plastic box clipped onto the wing side put a big flat headed driver in the crack of it twist it and voila drilled airbox! also remove the plastic cover clipped into the wing and you get even more air in, if you leave the arch liner in it's dry air too.
Will need setting up again on a rr though shouldn't charge you full price to get it reset though.