I called AEM yesterday with the same question regarding the bypass valve. They don't have a bypass valve available for the CAI made for the Vibe. He said that the design is not suited for the valve and that it might pose more of a problem it you try to install one in it. The person I spoke to was really helpful. If you have any questions regarding this, call (310) 484-2322 ext. 247 and speak to Robert Green.
***SOLD***2003 Vibe GT Monotone Neptune - Inaugural October 2004 Vibe of the Month***SOLD***
Now the proud owner of Titanium Silver 2012 Kia Optima SX
Based on some information I received for a trusted friend who knows a lot about vehicles. He told me the bypass valve is a good design and idea, but poorly executed. He recommended that I not buy it as there have been hydrolock failures even with the bypass valve and they valve itself deteroriates quickly. Just FYI.
'03 Vibe GT monotone silver/black interior, 17 inch wheels, 6-disc changer, power packageMods: AEM intake, TRD springs, A-spec Strut Bar'01 Corvette Coupe silver/black interior, six-speed, Z51, a few mods, 12.29 at 117.3mph in 1/4 mile on street tires.
That is kind of like what the technician told me over the phone. He said the only way that you were going to hydrolock the motor would be to completely submerge the filter element. The only way you are going to do that is to go throug a puddle that was at least a foot deep. The normal splashing, rain and snow would not affect this. I don't know about anyone else, but I try to avoid even the smallest puddles. Not because of water, but because you never know what is under it (ie. pothole, debris).
***SOLD***2003 Vibe GT Monotone Neptune - Inaugural October 2004 Vibe of the Month***SOLD***
Now the proud owner of Titanium Silver 2012 Kia Optima SX