Yep, several ways of doing it.
As Heath says, if you just want to close up the gap at the ends then all you have to do is cut'n shut the bar and move/elongate the mounting holes (if the cut is in the centre, otherwise two cut'n shuts outside the brackets, but there's not much room to play with there).
If you actually want to close the gap between the bar and the body (across the length of the bar) then that requires surgery on the brackets as well, which is much more complicated.
Looking at the (standard) rear bar in particular, the ends don't really follow the shape of the body (they're kinda cut square whereas the body curves inward), and it may just be the shadow in that picture above, but it looks like they've extended the lower part of the end to better fit the body.
That's a terrible colour to see detail work like that BTW, it seems to hide the work rather than show it off, or maybe it's just the poor lighting/shadows.