I moved from FL to UT (long story) and I've had no problems with my SRI be it in the snow, dust, slush, rain. Well, I take the rain part back---it simply doesn't rain here 
The whole heat soak thing with short rams is a joke and anyone with a scangauge or dashhawk can attest to that. The only time I'd say it would hurt performance at all is at the drag strip if you've had your hood closed between runs to keep all the heat in, but a CAI would suffer under similar conditions. Any of the SRI's "problems" with heat go away very quickly once the car moves. My intake temps are never more than 5º above ambient (be it 50º or 95º) shortly after moving and then sometimes they're the same temp:
Car felt great that night! haha
The whole heat soak thing with short rams is a joke and anyone with a scangauge or dashhawk can attest to that. The only time I'd say it would hurt performance at all is at the drag strip if you've had your hood closed between runs to keep all the heat in, but a CAI would suffer under similar conditions. Any of the SRI's "problems" with heat go away very quickly once the car moves. My intake temps are never more than 5º above ambient (be it 50º or 95º) shortly after moving and then sometimes they're the same temp:

Car felt great that night! haha