I just looked up my COP numbers last night on my '08, and was dismayed to find that I have the old style plugs. Shit. With 20k miles, I'm thinking it's time to do a plug change.
Do it... I have over 76k miles on my car and have to do the job.... I'm going to follow the TSB, but fear that not all of them are going to come out. I shall be following the TSB to the T however.
I stretched mine out over a 3 day deal did each plug a little turn at a time till they all came out while they soaked