I like the RS vents as functional and looks like it belongs as an RS style part. I would like 4 sections, two straight ones in the middle and two tapered ones on the sides.....my generates quite a bit of heat.
The hood scoop is in the wrong place but could be routed to the air box of choice but adds more weight as well and that kind of scoop is not very efficient so it is more like a rice scoop than a proper upgrade mod to the car.
A NACA duct designed to flow into the air box would be far better though I do not need one with my grill mounted duct but would be OK with it for others sake.
I larger center vent would be great, they need a lip in front and to be as far forward but not to far, to extract heat out from the radiator, etc.........GT style is my favorite, had one before.
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Pins, fully pinned hoods are great for race cars but not so great on a street car, been there on both....
I have had a hood or two from them, they had stock mounts for the regular hood release, nice for a daily driver as easy to use but you can take out some weight, the mech, cable, etc.....and add pins, I have a few sets of standard style aluminum ones but they do not lock and cause turbulence.
I have used the Aero catch, a bit heavier than pins but very handy and lighter than the stock release system, still have to take the time to unlock them but that is pretty easy, install not to tough but take the time to align well before drilling.