Holy crap, this thread is still going?
Why is the debate so hard to figure out.
1) The forward facing scoops and ducting just adds more air under the hood, screwing up your downforce and not cooling the engine more effectively either.
2) CF is in high demand, so it's unlikely that we will see CF hoods under 600.00 anytime soon for the MK3.
3) We have a header panel with the leading edges of our cowl hood design built in that have to be considered in any design. Either tie your hood into them, or the hood will look like shit. End of discussion.
1) Lighter weight hood. (Can be kevlar and fiberglass for all I care.)
2) Any vents have to be functional.
3) Any screen has to be aluminum since I hate rusty steel ones.
4) Hood should look good open, or closed. The underside has to be neat and tidy, and can't have bonding compound and resin, or uncut fibers sticking out all over.
1) Three vented areas.
a. The two side vents are a series of four vents at a slight angle like the "white" car with the modified stock hood.
b. The center vent is exactly like the "blue" car's with a reverse vent that is open right over the space between the stock radiator shroud and the cams.
If done right, the center vent will pull much of the hot air exiting the radiator area out of the engine bay, and the side vents will pull additional air out along the sides of the engine. This will promote better air flow over your turbo, and the intake manifold, keeping everything cooler as a result.
Make this hood from Kevlar/Fiberglass and keep the price under 600.00 and I'd buy one.
Add all the funky angled and dammed up slits and NACA ducts, and I will not spend a dime. There are plenty of the funky ones available. Please do not try and vent the hood anywhere past the strut towers however. That will just push more air into the engine bay at speed. (Just like the guys who remove the rear weather strip and then shim up the rear of the hood find out. Counter productive at highway speeds for sure.)