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I have searched and I have read don't get it since cai never sucks up much water, get it to be on the safe side to avoid hydro locking. I have read maybe one or two posts saying you have to cut the intake pipe to fit the bypass valve. Is there another way to put the bypass valve in? Can I leave off a rubber connector and replace it with the bypass valve, or will it just fall apart? I'm not sure how tight in the pipe it is, and some of the members have cut the pipe, but how did you get it to stay into the pipe?

 
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if i were you i'd get it cause it will suck up water.and if it does water can't be compressed and this can cause serious damage to your engine.anyway it connects to the pipe with clamps.you might be able to fit it where the two pipes connect.someone correct me if i'm wrong.

 
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alien: yeah, I believe you can, as long as you have something supporting that portion of the pipe. The bypass is not meant for support.

 
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I plan to get the bypass valve (better safe than sorry when $40 is in volved with a $14,000+ car), but I'm just wondering if anyone has put one in where the rubber connector is instead of cutting the pipe. I just don't want to cut it, plus I wouldn't know where to cut it. I haven't gotten the intake yet, so I don't really know the angle placement of everything.

 
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The rubber connectors are meant to hold the intake pipes together. I'm not familiar with the design of the bypass valve, but if it's handi-capable then use it! j/k What I meant was to say that if it's capable of holding together the pipes just as well as the rubber connectors, then use the bypass valve to hold together the pipes instead. Just remember that it has to be at least a foot away from the throttle body. Hopefully everything will fit nicely if you do this since it would extend the pipe in that place.

 
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<< Just remember that it has to be at least a foot away from the throttle body. >>



I didn't know it had to be a foot away from the engine. Thanks for the tip. I am assuming the bypass valve fits the inside diameter of the intake pipe and not on the outside. For people that cut the pipe how did you get it to hold in place without wiggling loos from the pipe? Also is there some kind of glue/adhesive that could be used to keep the valve attatched to the pipe?

 
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If you end up putting the bypass valve at the primary-to-secondary connection, let us know & post some pics. I would be interested in doing the same thing. Good luck!!

 
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<< If you end up putting the bypass valve at the primary-to-secondary connection, let us know & post some pics. I would be interested in doing the same thing. Good luck!! >>



That's what I wanna do, but I can't think of what to hold it together if the connector is at an angle or verticle. I'm hoping if someone has done this will see this thread

 
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I have found two conflicting pictures of the bypass valve for me. The first one myurl looks as if it connects on the inside of the pipe, but the second picture at the bottom of coximports myurl makes it look like it attatches on the outside of the pipe with brackets. Anyone know if it attatches on the inside or outside of the pipe.

Just ordered it today, but I figured I would see if I could get some info before it came.

 
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I think both. The plastic part goes inside the intake, but you have these rubber rings that go on the outside to secure everything.

 
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on the AEM CAI, isn't the primary pipe a different diameter than the secondary? As in, the one that goes into the throttle body is 2.5", the one that has the filter attached is 2.75".
It's that way on my 2k1 EX 5spd, anyway. The rubber boot that connects the two is a different size on each end.

So, I don't think you can just replace the rubber boot at that point w/ the bypass valve.

And for deciding where to cut the primary pipe: It's not how far from the throttle body that is important, its the relative height between the throttle body and the bypass. The primary pipe is at an angle, so the farther you go from the throttle body the lower the bypass will be. Look at some pictures of it installed to see where it should be.