This is especially aimed at Florida crowd; For those who run a CAI in thir cars, because of the rain that comes down during summer and fall, do you guys use/recommend using a bypass valve?

 

If you have an Injen, I would. I have the PR CAI and do NOT have a bypass valve on it. The PR CAI is protected from direct water by the fenderwell covering. However, the Injen sits in the engine bay and is susceptible to splashing water and rain.

 

I would only run a bypass valve on AEM intakes.