Seriously, How much time did anyone else put into the design of there lids compared to Donaldson (Makes Blackwing lid)?

Do a little math just because it has a oval to round inlet means nothing. A round pipe will flow no more than a oval one as long as the area stays the same.

 

I'm not saying it's bad, hell something has to be good for the $320 price tag, but does it flow more or the same as a aftermarket lid? Who knows? Guess you would have to put both on a flow bench to find out.