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post #1 of 12 (permalink) Old 07-04-2008, 08:49 AM Thread Starter
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Lightbulb Cold Air Intake??

OK guys so i started to do some welding and things and i though of a great idea..... Do my own Cold Air Intake since i got the perfect tubing... but in the middle of the process i started thinking since the CAI goes towards underneath the car.... WHAT PREVENTS WATER GETTING INTO THE INTAKE??? i called up 2 of my friends to check their intake.... one has a kind of foam looking thing between the pipe and the filter to prevent the water in.... the other doesn't have anything just the filter connected straight to the pipe....... i mean some of you guys have CAI right.... WHAT DOES IT HAVE TO PREVENT WATER TO GO IN???? HOW DOES THAT WORK??

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post #2 of 12 (permalink) Old 07-04-2008, 10:52 AM
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What your friend has on his car is called a Bypass Valve or Bypass Filter. It doesn't really kick in unless your car is submerged in a good deal of water. I have an Injen CAI on my car and don't have any Bypass filter on it. Now I've gone through some deep standing water, and have had no problems. The cone for the CAI sits in the cavity underneath the right Headlight. The cavity is pretty good for not letting any water in. I had the same concerns as you when I first installed mine. I didn't want to damage the engine. One day after a few days of heavy rain and driving through DEEP water puddles, I popped the hood and tooko a look down in that cavity. It was a lil wet, but it wasn't wet enough to cause any major concern. Run your CAI to that cavity and you shouldn't have any problems. If your still a bit worried, you can purchase a bypass filter at O'Reilly's or AutoZone for about 10 or 15 bucks. Oh yeah, the puddles I drove through were REALLY DEEP. I live on the gulf coast of MS, and Katrina couldn't harm my ride. No worries man.

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post #3 of 12 (permalink) Old 07-04-2008, 12:04 PM
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One guy I worked with told me he has a CAI and a SRI,he said depending on the season he would switch them back and forth.

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post #4 of 12 (permalink) Old 07-05-2008, 07:41 AM
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Make your CAI and buy one of the filters and call it a day.
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post #5 of 12 (permalink) Old 07-05-2008, 09:10 AM Thread Starter
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well i got this filter from pepboys which seems to do the job.......

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post #6 of 12 (permalink) Old 07-05-2008, 04:45 PM
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get a k&n with a closed end... point the filter down so the closed end is parallel with the ground. water wont splashe up to easily... but dont extend the filter all the way to the bottom of the car, just enough so it is out of the engine compartment. made my own a few years back with stove piping from a hardware store. had the same worries, but just dont drive through a lake and you will be fine.

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post #7 of 12 (permalink) Old 07-05-2008, 06:59 PM
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I was lucky enough to buy my AEM CAI used and it came with the AEM hydro-shield on the filter already


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post #8 of 12 (permalink) Old 07-05-2008, 08:54 PM
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yeah you could make your own sheild with some aluminum... on my old car before i went fwi i had a sri and made a heat shield for it... i like macaroni

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post #9 of 12 (permalink) Old 07-06-2008, 06:01 PM
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just like everyone said, youll be fine. but if you do want that extra protection to ease the concern get a bypass filter
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post #10 of 12 (permalink) Old 07-08-2008, 03:26 PM
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Just order a hydro shield. They work great! no worries about hydro lock

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