intake manifold modification

[Robo]

Sadly these guys and I will not write there name but its only a STD manifold made pretty. these guys missed the boat and the opportunity to do something special. I haven't flow benched this manifold but I already know from experience it is marginal and as pressure rises it will get less results than the Bog STD manifold due to the absolutely silly radiuses on all edges. Even the Nissan engineers knew this and made there radius 15mm radius minimum.. Also $1500 for a pretty looking no better than a STD manifold is a joke.

presume this is to do with ebays pic of manifold .
agree $1500 lol.

more radius adds turbulence if air is introduced centrally?

Now I'm a little confused,
gtr's plenum round, in all 3 dimensions.