I went to go get an oil change today, and they asked me if I wanted the new type spark plugs installed "under warranty". So they replaced them. They cost 65.00 a piece. But they are covered under warranty so they didnt cost me a dime. Here is a pic of the invoice. They just got the shipment of the new plugs in yesterday, so if I were you I would ask about it at your dealership so you wont have to worry about putting them in later, like when they are not covered under the warranty.
you can see the part numbers in the picture of the invoice.

 

why'd they ask if you wanted new spark plugs?

 

Some guy on Ebay is selling the "new plugs for the 8"
I wonder if it is a bulletin or memo ....

 

there is a service bullitin for the plugs, its to eliminate hard starts and to improve gas mileage. So far my car has started much easier but I will soon see if there is any gas mileage improvement.