I dont know if you have flooding at all in your area.. but let me be the first to say I do and wanted to trhow my FWI in the garbage about 2 or 3 months ago.
I live in Fl. and with the 45 thousand hurricanes we've had, I had some serious water on the way to my house, night time made it difficult to see and before I knew it I was going waaay too fsast in faaay too much water!
Car stalled, deader than dead.. Wouldnt start back up for the longest time.. Finally did, had to keep my foor barried in it to keep it from dying.
It ran like crap for about 1/2 a day, all is well now, but it wouldnt have happened if I didnt have a cone sitting 3-4 inches above my lower facia.. wich is only a few inches off the ground.
Now i have too much crap in the engine compartment to go to a box, but if I could, I probably would. I just have to try to waterproof my inner fender as much as possible.