The updated XV radiator support comes with two spacers if you want to remove your lower support and place their support lower to clear factory radiators. I'm sure they would send them to you, they are just two 2 inch pieces of the same square tubing the support is made out of. I don't really care for the extra drop showing in front either.
On the Hemi question I think that refers to their upper support that ties both fender aprons to the firewall. I don't think it clears the dual quad or six pack air cleaners.