They are the same bolt pattern and same hub bore, but know how they will fit/look on the '15 Optima
you'll need to know which wheels you're speaking about. Some stingers have the same size on
all 4, while others have two different sizes.
And it was mentioned how off the offset was and that it probably would not work/be safe. Can this be confirmed one way or another since I saw this photo posted on a K5 facebook group. So what's the verdict, I would love to throw these badboys on my SX