I have been looking thru a few threads hear and there at plug issues with the OEM ngk's. I have one plug where the insulator has come loose.
And after talking with the Parts Dept at the local dealership i found they list a new part number for the 2011's and was wondering what the difference is.
I posted this here instead of a pm in case others are interested in this .
Thanks
Jim

 

Yep, they did change the spark plugs on the 2011 Model, but I do not know what the difference in the plug is. I tried doing some research, but came up with nothing.