I didnt get a chance to call them, but mounted the cobra bumper and found that the u shaped brackets needed to be removed. Should have figured this out when the Cervini piece came with two L shaped brackets.
Just incase anyone else is doing this:
I just drilled out the four steel rivets holding the brackets on. I took a die grinder and removed the remaining rivet studs. Probably not needed, but I wanted to make it clean.
What part of NC are you currently in Silver? I'm located in Havelock and am trying contacts in the area.