I shall solve this debate once and for all.
The stock air box is restrictive. The 2" snorkle is just as restrictive, but allows for deepwater crossing, something I learned early on that it's a must.
What everyone needs is a snorkle, be it 2" or whatever you can make up. It looks cool and you can ford deep water. For the highway, you need to have an access cover on the bottom of the air filter box, something perhaps with threads for a good seal, so that it provides a large opening for air to bipass the snorkle.
an alternative is, simply disconnect the rubber hose between the airbox and the aluminum intake runner thingy, put on a k&n filter. I f you want cold air intake for that added 1 hp, get a 3" flexible dryer type hose, automotive specific, hook one end to the aluminum air intake ( with a reducer if required) or just a hose clamp, attach said k&n filter on other end and secure in front of vehicle.
remember to remove filter if youre wheeling, dont want to soak it in mud if you dont have to.