If you tend to drive down roads with lying water, just by the Aem V2 instead. Assuming you don't want to pay out for a carbon box.
In theory, you should be fine though. What's the point in all those hours of research and development, just to hydro lock cars on a regular basis. Most countries in the world have rain in some shape or fashion.
My advise would be to buy something else. You're obviously worried about it. What's the point in buying it if you can't enjoy it?
I've been in your exact position. I love my car, but I'm not paying for a carbon air box. I just can't see the money, or gains in a non turbo car, when I have no intention in re-mapping.
I bought a used, great condition, Aem V2 from eBay for 120 quid. Ok, it's not best for heat soak in the summer months, but what a hoot !!
Induction roar is superb !!!!
Lets be be honest mate. It's just an air filter at the end of the day !
You'll get next to fek all power from any of them. It's the roar you want !!!!!!!