Those sheet metal intakes are really a peice of art and should sit on your living room coffee table....if you can get permission from the wife...
they are pricey however, and in a mild blower application I would get a bds intake, port match it and clean it up. You can still use your port nozzles . Im sure the indy intake is similar to the bds. The cast intake would be more rugged and withstand a blower backfire better. Yes I know you need to install the blow off plate, but that is like throwing a hand gernade into an open phone booth.
The sheet metal intakes would be used where you have an odd ball combination that no one else makes a cast intake for.