Before I start, i'm not a mechanic. Nor do I know a **** thing about bikes. This worked for me but attempt at your own risk
Undo the two bolts that hold the cover on, then undo the next two long bolts at the bottom which hold the assembly to the cylinders as seen in the picture.
PAIR assembly
There are 3 pipes. One incoming air at the front. The others are at the back, going to the exhausts.
Remove back two, and stick a plastic (so I'm told, so it's what I used) into the rubber pipe head first so that the pointy end of the tee is sticking a little bit out from the pipe. It shouldn't dissapear completely.
With the head of the tee blocking the pipes to the exhaust, re-attach them as they came off. Bolt back together and you're done.
PAIR is in one piece, but the feed pipes to exhaust are blocked so no air gets through.