Cold Air Intake got wet :( help!!!

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Mazda 3
I just put on an Injen Cold Air Intake on my car and today it was raining all day..I was driving all day in it..and then later in the night I went out to start my car and it was running real rough and smoke was coming out of the exhaust reallly thick white smoke...and I couldnt rev the engine very high at all..it sorta got rough at 4k RPMs what can I get to stop water from going in there? I heard there was something I forget the name of it but it was around $50 please help..thanks!!!
 
o yeah...

also maybe it wasnt a problem with water getting sucked in? bc I got in my car and the check engine light was on..but then I checked the filter and the filter was pretty mnuch off... the clam slid off of the filter so maybe its bc there was an air leak? maybe????? hmmm I tightened it back down a lil bit ago and it was fine...do you think driving in the wet weather could be enough to dmg my engine anything?
 
I wouldn't be too worried about getting the filter itself wet. As long as you don't submerge the whole filter in and rev, you should be ok. I went through a puddle and pressed down on the clutch pedal and as soon as the whole filter got submerged, the engine just died but was able to start back up so basically I suffocated the engine without letting water actually get to the engine. Just make sure all the clamps are tight and you should be ok.
 
One night is was raining really had I hit a dip in a neighborhood at like 15 and water came over my hood. Had never been on that road. Car instantly shut off. Car shut off so I pulled the intake piping off and looked down the TB with a flash light and could see water. I installed intake and pulled the plugs and cranked it a few times. Put them back in and it started so I drove home and pulled the intake mani off the next day to dump the water out of it. Was scary for a bit but nothing bad ever came from it.
 
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