The shell. If you want to look like an edge get the shell painted to match the truck and put one of three available inserts in
stock edge (will have 2 vertical bars)
black billet from carriage works will be black, but no vertical bars.
stx grill from '06.
picture this in black as one example:
Also check here for what is available from the '06 models:
Any of those will fit with no hood changes.