I think I can speak the final word on this subject.
I have had the VIS Invader Hood
on my car since January.
I have had the Injen SRI
on my car that entire time.
It has rained (heavily) here 70% of every month since May and I've driven in rain, snow, etc. with this combo.
No problems whatsoever. As I said though...if the car was going to be sitting outside in the rain while I was at work I'd throw something over that grill above the Intake
. If you're still worried, pick up a heatshield, which I did last month.