When I installed my Genright tube fenders on my 05 Rubicon, I had an AFE CAI (I liked the grunt it made), and with the Genright fenders the hood sat up maybe 1/2 taller than it did with the OEM fenders (Thank u Genright....), but after driving down the road in heavy rain I noticed my air filter was soaked!!! I tried a piece of rubber to reroute the air/water, but it still happened. Eventually I traded a friend for his Banks CAI setup and I'll have to say it solved the problem and the Banks does a much better job of protecting the filter vs a K&N, AFE, Airaid, or misc other CAI's for the 4.0L.
I have it now on my 05 LJ and the filter stays dry. I'm not a water guy myself especially with the sandy soil we have around here. It'll tear up seals, bearings, and brakes in a heartbeat. I prefer rock crawling or trail riding vs mud bogs and brown nasty water.
05 Electric Lime Green LJ with a 4spd Auto, 2.5inch Suspension Lift, OME Shocks, OME Steering Stabilizer, 32inch BFG M/T's on 17inch Moab's using Spidertrax Spacers, UCF Aluminum TC Skid, Novak Cable Shifter, Brown Dog MML, Rokmen 1/2 BL, Banks CAI, Diehard Platinum Marine Battery, JW Speaker 8700 LED Head Lights, Safari Nets, G.E.A.R Overhead Console/G.E.A.R Tailgate Storage, Rugged Ridge XHD Front Bumper, Warn Gas Tank Skid, Mopar Rock Crawler Rear Bumper, Warn XD9000i Winch with Warn Wireless Remote, and a Uniden 880 CB Radio