I have a 05 tc88 and I'm up grading to the 07 plate. There's the 25355-06 or 25355-06A.

 

My understanding is the "A" is an upgrade and not a fitment issue, so I would get the "A" version.

 

You may be aware but you will need all the other hardware and the N cams to make this conversion; can't do it with just the plate. I don't recall what the -06A suffix means but it could be a design improvement or manufacturing process change, vendor change, etc. The previous part number becomes obsolete.

The OEM cam plate does not have bronze bushing like the billet plate; the outer cam journal ride in the parent material of the cam plate.