The snorkel piece gets water splashed onto its sides every time I ride off road, if you ride off road put it back on and cut the top off it, the opening will be the same size but water wont splash right in. You could also make some sort of splash shield to do the same thing, water comes in right around the frame tubes beside your opening.
Heres a pic of my set up note the mud on the snorkel, it would've been on the filter without the snorkel there to stop it.
https://i.servimg.com/u/f86/17/97/50/10/dscn0012.jpg
I cut a hole right above the filter to give it as much air as possible, this location is protected better than the stock one for offroading and is more inline with most dirt bikes.
rsteiger is right about the tip over switch too, it needs to be mounted sideways to where you have it or the bike will shut off doing wheelies or riding down steep hills lol.