Personally, I plan on getting the Cobb inlet. It is moderately priced compared to the others and am sure is of good quality. I also plan on getting an Accessport so it will be tuned for in the future. The CPE pipe is nice and has a couple extra features over the Cobb, such as a brass nipple and rolled edges on the coupler, but you are also paying more for it. RPMC and Darkstar also make good budget inlets.
Get the Cobbs ones they look much better and cheaper. And silicon has better heat resistance. But to be honest this doesnt really help improve much on heat soak or HP at all. Its really neglible, not if you are always sitting in the traffic on a stop then yes this inlet would help out very little on heatsoak issue. But on freeway runs or going traffic this are basically useless, its more on the looks for me since the air in the front of our grill is pushing to cool the engine already.
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