Very nice piece. Extremely high quality. Get the new O-Ring though, as removing the old one will most likely tear or crack it.
This, along with the coolant cap, are great dress-up additions under the hood. Now I just hope they make the rest of the caps like this so I can really complete the look of my Aero. (i.e. Power Steering, Brake Reservoir, Washer Fluid).
Rating: [5 of 5 Stars!]