# KeeJay :
I'm blind, but for me, it looks that it's way more smooth and the center hole is a bit different.
Well, I've tried to modify the lip also, and the form of the side vents.. something went wrong tho, and i've lost the file with the more or less correct shape (old render, no smooth) 
And yes, it's more smooth) Gonna try to fix the form again, but to be honest, my skills in 3ds max are bad haha