I sent you the laser cutting file for the weld on Pantera nose didn't I ?
Yes, both the bib spoiler & the shroud/hood will produce down-force.
I also plan to install little wing shaped aluminium louvers where the shroud joins the hood.
This will act as a grill & block out vision of the fans & radiator so our law enforcement idiots cannot see the radiator.
(some stupid law they have regarding fluid getting on your windscreen from rear facing holes in the hood).