Hi Guys

I've got to feed air from a under the spinner to the throttle body.
I'm interested in Ram Air but have some questions.

1. What do we do about a bit of rain getting into the system? I gather ice and snow is a huge problem and some designs have bypasses.
2. I take it that filtering is essential. How does water effect filter material? What filter material is best.
3. Is there a valve available to purchase to switch between filtered and non filtered ram air?

Cheers

Steve Izett