I did the snorkles that Polaris425 gave you the link to. I love them and I had to rejet but it is a 50/50 thing. Not everyone needs to rejet and then others need it. I have a pipe so mine needed it anyway.
I went to mudnats back in 08 the weekend after I bought my brute force and had not snorkles. I had big tires and a lift and winch but I was so scared that I was going to ruin my new ride because the park was flooded that year and if you missed the trail by just a little you would be fender/tank deep quick. I got on here and did the snorkles shortly after that ride. If for nothing else they are VERY cheap insurance when compared to the price of a rebuild.
I go deep now with confidence that if I do not roll my bike it is safe.
07 Brute Force 750
Warn 2.5 winch,2 inch lift
1" spacers on all 4,SS312 wheels,30" Silverbacks
dynatek,Radiator relocated,dynojet jet kit,red secondary,HMF Utility (loud) series
The Wifes Bike
08 Rancher 420