[nonovurbizniz]

I have no bypass valve on my iceman and drive it all the time in rain through puddles etc... never had so much as a gurgle...

My car is stock ride hieght though...

Almost all the power from the aem is because it's one piece... as soon as you cut it and put a rubber joiner in it... it looses velocity... with the bypass valve (because it's not smooth like the rest) also F's up velocity/flow.