Most "sport" quads are not really subjected to the conditions to drown them so there is not much interest or market for snorkels. If they do make snorkel kits for any of them it would be no different than a 4x4 snorkel, Either some pcv or flex tubing.
It comes with the territory I ride.. lots of deep water. I am sick of going around... And yes,. the exhaust will need an upward extension.
Dam this is getting ugly.. wonder how I can still make it look bad @ss and stealth with the exhaust.
For the airbox my first thought was many small air inlets leading to something larger under the seat. Like 5 marine grade hoses that can fit under the tank, then go into a large fitting. Will be a major restriction.
I was also thinking marine grade exhaust hose for the airbox and running along side the exhaust, then coming up to the headlight. This could withstand the heat. I could also leave some slack and mount to the handle bars when I anticipate the really deep stuff.
Second the exhaust will get nasty I am sure.... ugly.
It will be cool overall... the ultimate sport quad that can go ANYWHERE... who needs 4x4, this thing can power out of anything, especially with a good set of mud tires.