PD,
You'll get many good recommendations for low-cost or easy-to-find alternatives here shortly I'm sure. However, because of its nice sheen, that appears to deliver the most recent 'from-the-factory look', several folks over the years have recommended PJ1 Coatings' Special Satin Black.
Here's one such reference:
PJ1 Special Satin. Many Motorcycle dealers stock it or get it online. | Norton
Mike