Help!!!
#2
I don't know, but I can say that the foam gasket for K&N on my 95 Moto 4 350 is not quite thick enough and doesn't make a tight seal. I'm going to seal it up with windshield sealer gasket. The K&N lets in a lot of air and you might need to go up a size on your jet or raise your needle in the carb.
#3
on my warrior I have the k & n and its fine but with stock air box lid it wont do much, I would recommend getting an outerwears filter cover or some kind of lid modification to allow more air to the filter. And with the K & N make sure to check it and make sure it stays clean. O almost forgot for the wolverine you can get the filter and outerwear for like 70-80 dollars.