Install instructions for NB Radiator Panel Cover part # 61-2588
Note install photos show a rough prototype in raw aluminum. Production version is powdercoated and slightly different in shape.
Install is simple, figure 30 minutes including a lunch break
Comes with just 2x bolts/washers/lockwashers, and two brackets.
Install the pair of supplied brackets under the two factory bolts (red arrows):
Remove the two upper radiator brackets (blue arrows).
Install the radiator cover panel with the pair of supplied bolts/washers/lock washers screwed into the two brackets you just installed (green arrows).
Reinstall the upper radiator brackets on top of the radiator cover panel.