So you want to buy an intake?
Hey man, i feel your pain with the CAI's! My CAI works great, but their are a few shortcomings to them! Yes, at first mine also did suck water but with a little inginuity i have mine fitting higher than normal to steer clear of any water so that solved my water problem. I would say the 6hp sounds bout right most of the time. I personally can Tell a HUGE difference in driving my car with the CAI on it. It may not be a huge diff on a dyno or in drag times, but my shift times have increased almost exponentially, I'm very impressed myself!!
Hey Ed, The Bomz CAI suck big time. If you gotta new Focus they WILL NOT FIT!!!! The Sensor port does not fit at ALL! But with a little inginuity you can use the section of old intake pipe for your sensor placement then run the aftermarket pipe out from that, just takes a little thinking outside the box!!!! Please let me know if you need anything else!
I hope i could help in some way