its still stock mafs opening and stock diameter at the turbo inlet, its just gets rid of the ripples the stock rubber tube has and is slightly bigger in diameter in that area.

carbon fiber is used in alot of intakes and we already have pieces that we have beaten with bats and jumped on and they do not break its quite amazing slamming doors on flat panels.

please enlighten me on how a pressure drop is associated with the intake which is non pressurized (but has vacuum)