My car came with Z07 option so I had the Carbon Flash rockers already. As it is yellow, I went with the RPI painted fender splash guards paint matches exactly and they are pretty inobtrusive. I love the look and it seems to finish the fenders off properly.
Actually I have a 2015 Z06 with Z07 package and it has a D-shaped wheel with the Z06 logo. Not sure if this was exclusive to Z07 package in 2015, but it's there.
Got mine done at Boyers in Pickering. Definitely feel the difference. BTW it was done under warranty free of charge if car is less than 3 years old and less than 60,000 kms. My car is a 2015 Z06 with Z07 package. Talk to Ken, service manager at Boyer Chev Caddilac in Pickering. He'll hook you up.
My dealer did it free on my 2017 Z07. Told me that GM said as long as car was less than 3 years old and had less than 60,000 kms on it it, it was done under warranty. Apparently there are two levels available and I got the full track set up.
Are you sure you have Cup 2s? They usually only come with the Z07 package. The other Zs and the Grand Sports normally come with pilot super sports. I have almost 10k on my Z07 with Cup 2s and they will be toast by the end of this season. Will switch to Super Sports for next year.