"Going on sale later this year, all models will include the Z07 Performance Package with carbon ceramic brakes, as well as a specially serialized vehicle identification number.
Other exterior features that distinguish the Z06 C7.R Edition from regular Z06 models include a graphics package, yellow brake calipers, black wheels with yellow accent strip and Corvette Racing-logo center caps, visible carbon fiber ground effects package, new visible carbon fiber hood section, as well as grilles and vents finished in Spectra Gray Metallic." - CarsScoops
So yes just stickers and a package option that's already been released for the Z06.