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Old 09-14-2005, 10:09 AM   #1
Scooby Newbie
Member#: 94142
Join Date: Aug 2005
Location: Maryland
2002 Impreza OBS

Question CAI water ingestion, emissions

I have been looking into getting a CAI probably the Cobb tuning CAI and I have been worried about ingesting water and stuff is this really a big problem? As in am I really at a high risk of ingesting water with this CAI?

Also will this CAI do anything that would make me fail emissions?
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Old 09-14-2005, 11:51 AM   #2
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Join Date: Jul 2005
Chapter/Region: MWSOC
Location: NW Chicago
2009 Scrambler
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I got the Cobb CAI on my OBS for a couple of months already with no problems. The cai goes into the side fender so as long as the protective rubber around the wheel is fine then you should be fine. (but don't take my word for it, I'm new to this also). I think you can always put some extra sealers around the area for that extra protection.
As for the emissions, I never heard of a cai effecting anything enough to fail the test. I did get the P0402 CEL code twice, but that might be because of the borla headers or a faulty cat. (I'm not worried because it only came up on long distance trips of +500 miles).
Other then that, the cai and my catback (stromung dual tip) made the car breath much easier. You can easily feel the difference.
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Old 09-14-2005, 12:22 PM   #3
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yeah what he said about the CAI going into your fender... make sure you put your fender liner back in after you install CAI or you will be at a much higher risk of ingesting water. I had an AEM CAI on my 95 prelude for about a year and a half with no problems with ingesting water even in heavy, heavy raining....

* make sure if you do decide to put it on your car, that you don't drive through any deep puddles, and if you feel your car start to stall out in heavy rain: DO NOT give it throttle to try to keep from stalling. It may mean you are actually ingesting water and by going to WOT or just partial throttle you will ingest more water.
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Old 09-14-2005, 01:53 PM   #4
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With the Cobb CAI, you don't mess with the liner anyway. Should be no reason to mess with it

Not to mention, because the Cobb has an inline filter, and is then fed into the fender, there is a small risk of water ingestion unless you drove through quite a good amount of water. And no, CAI will not affect emissions in most states. Search for your state and you can see if it'd be a problem (likely, 99% that you're fine.)

You should be just fine. Just always be sure to watch the road when it's raining and take caution regardless.
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Old 09-14-2005, 04:17 PM   #5
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I drove through a good 8" of standing water when we had all that flooding earlier this year with the cobb CAI on with no trouble at all. And to install it, you just take out the old one and put the new one in. nothing else besides the intake system needs to be moved, loosened, etc.
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