bypass valve dosen't work on the celica.
I was going to buy one but the only place they can install it, is not going to do the job to keep the water from going into the engine. I would get the Ingen CAI
if worried about water getting in engine. Ingen has a heatsheild that can block the water and I think the CAI
comes in two peices so you can adjust it. I live in Tucson, AZ so i don't really have to worry about water.