I don't know of any metal aftermarket hoods for our cars, but if you buy the 3D design carbon fiber vents w/rain tray from either WheelSTO or EAS that might suit you. The part that sucks is that the vents alone cost about half what a full carbon fiber hood would cost you and you have to have someone cut and install and possibly repaint your stock hood. To me these vents are the best in terms of design and the placement of the vents on the full carbon hood are where I'd like them. Not sure if this helps, but its an idea.
http://www.europeanautosource.com/pr...oducts_id=3385