As I was boring out the hole I thought that you probably made it the size you did for a reason
When I make my thread for this whole install I will note that you sized it that way on purpose and what I did isn't necessary.
I would expect that this isn't going to change emissions at all, although I understand that you can't guarantee that!
JB-- good questions, all. I look forward to sharing my dyno numbers for this + 987 airbox as a reference point for intake mods here.