I don't have my manual or my car in front of me right now for an exact
measurment, but, there is about 1/2" space from the bumper end light housing to
the fender. The recessed flange extension on the fender will be visible between
the bumper end and the fender, but the raw end of the flange will be
behind/under and covered by the bumper end.
Hope this makes sense!
David