Iridium Spark Plug Numbers?

[Shifu]

Hi, I have been thinking about installing a set of Iridium plugs to my 2010 Busa.

I am trying to find some part numbers for the correct plugs for the Busa.
I think I will stay with the same heat rating as the original plugs also.

So dose anyone have any part or ID numbers for these Iridium plugs for the Busa.
Also where is the best place to get these plugs from

Any help is greatly appreciated.
Cheers.

I got NGK Iridium IX CR9EIX in a 2010 model. No probs. Through the Amazon for about $8.50 each.