You should be good to go. I haven't extended anything up on mine and I have been above my seats in water and pushing enough of a wall of water that it was coming through the windshield in a river crossing.Thanks for the replies. I have installed all extended vent lines for diffs, sub trans, gas tank, and cooling fan. Obviously the particular filter. What else is needed? Florida is tough to go off-roading with out coming across water that is sometimes deeper then expected.thx