Aem Cai
 

For those of you with experience with AEM's cold air intake bypass valve - does it work, or is it a piece of trash... will your engine still go under? thx

The thing does work as far as I can tell after watching tests of it. I have mine in right now because of all of the flooding we've been getting, but I take it out when the nicer weather rolls around. It just gives you a little better feeling when you're driving in the extreme rain.

Can you say PIECE of MIND...