Correct.
http://www.hpcoatings.com
http://www.techlinecoatings.com

There is a tech line authorized shop in Hopewell, VA. The cost would be far less to have the skirts moly coated there, and the tops ceramic coated there, after you buy the pistons. Not to mention, the quality would likely exceed the OEM piston manufacturer, who sends them to Jet-Hot, in large batches, in a hurry to get them back! And, Tech Line coatings are guaranteed for a LONG time. Free replacement of the coating for 10 or 20 years.........

There's a lot of other parts (especially in a turbo motor) that will benefit greatly from ceramic coatings, as well as moly coatings!