You wont have any problems with the rain. There is a "sloped" down section right before the stock ducting. The ducting curves around at about 90 degrees then the main entrance is met with the secodary hole (the ones that some people have plugged up) which runs downward to the brake ducting.
why would they plug it? Do you recommend this eloy?
As Myke said, it seemed to show nice improvements in the midrange.
I'm not 100% certain whether this was from the plug or not though.
I didn't get a pre-dyno just before plugging them. Deknight is going
to dyno pre/post plug and I'm sure he'll post his results. I have
since removed the plugs to dyno again to see if I see the reverse
results. I'll post my results as soon as I have them.