Just my
With the 2013s and up I would not black out the center.
On the 09-12s the center is recessed so there is a defined center that's why it looks good on a 09-12.
Like the 09-14 NISMOs the bottom lip juts out all the way across so, IMO, blacking out the center will mess with the lines of the bumper.
Like I said just my