It is FMIC now. It is on my list to block it off, just haven't decided how I'm going to yet without destroying the scoop.
It's a carbon fiber Cyber R scoop. It's a fairly small opening on the inside, easy to cap. I only keep the scoop for the aesthetics, otherwise I've contemplated using a 2.5i hood instead.
When I block the scoop, I was also thinking about adding more louvers directly behind the scoop, but I haven't worked out exactly how much room there is yet, as the plastic wiper cowling and firewall are a good 3-5" inside from the edge of the hood. I also don't know for a fact if it's possible to go "too far" up the hood, as I'm sure the closer to the back, the higher and higher the pressure you will be fighting to move air through. But perhaps directly behind the scoop is plenty low pressure anyways. (Especially with how large the Cyber R is compared to stock.)
I want to say on average cruising on the highway, there is probably approximately a 10-15* delta on IAT's from ambient. I'll be watching as I commute from now on to compare. I'm most curious about extreme hot days, which are not far away here in the Dallas/FW area.
I have a Cobb SF, I realize I forgot to include. It has no heat shielding of any kind. Very much at the mercy of the under bay temps.