My TII has the stock hood. Nothing to vent off engine bay's heat.
The "cold side" pipe of the FMIC gets quite hot. Haven't taken the actual surface temp but it's up there.
What have u wraped it with to insulate from heat?
I was thinking exhaust pipe fiberglass wrap and topping it off with aluminum tape.

 

Lots of people use DEI Reflect-A-GOLD.

I doubt it makes a large difference as long as the air is cooled from the intercooler once it enters the engine; the air is generally moving in too large of a volume to absorb enough heat from the piping. It definitely can't hurt though.

 

Reflective tape is good for radiant heat from a glowing source. Not sure how well it works for convective heat from being surrounded by moderately hot stuff. And, the intercooler is being heated from charge air inside, and a lack of airflow through the core. So you can block external heat all you want, but it will still get hot. Also agree that fast moving air through a pipe doesn't have a lot of heat transfer. That's why tubes and fins.

 

Best way to have a cold coldside pipe is a better intercooler. Will always heat up when the car is parked though, just like everything else in the 'bay.
As to the reflective tape, as mentioned only really helps against radiant heat, which there isnt much of that side of the engine bay.
Try a bunch of extended highwat runs and then quickly park it, pop the hood, jump out and grab the pipe. That will give you a rough idea what charge temps are like.

 

went ahead and ordered from Amazon a Mylar Thermal Foil Blanket. Cheap. I'll feel better the work being done by the large IC is not being compromised specially during cruising/low load conditions. Agree when the air is really moving, the pipe's temp has relatively small effect.

 

I kind of giggle to myself when I see gold tape on cold side pipes. All polished metal surfaces have extremely high reflective values and reject radiant heat very well.
Your choice of a blanket style insulator is much more appropriate for the convective heat you find underhood.

 

Old thread, but I did a lot of testing on this. I ran a a couple tempnsensors all over for a couple thousand miles. The tape does not help much at all. I did it since I had some laying around and the pipe was actually barrier coated which was ugly greenish brown.
The air moves so fast it makes no damn different really. If I could re do the pipe I would do it in dispersant. A shield over the turbo could help. I started making one then got tied up with my intake. Not speaking of a blanket as I have twins. Just literally a square barrier shield to hang in between the twins and the pipe. The best pipes I found for the intake were the oem. Carbon fiber would probably work good also. Polished metal can help, but anything metal will heat soak easier.
True cold air intake would be best. This is why everyone figured out that water/meth inj rocks.