i have checked and it seems as if the spindle grill might fit on a non f sport bumper on the 2014+ models
the bumpers look the same. And some places have same part number for the bumper.
It seems as if the only difference is the spindle grill, top and bottom grill and the fog light garnish.
Looks like Seawell is selling them and available on each year's pages. So it seems like a direct swap out. Not a bad price (with clublexus discount) if you want one. The front bumper also comes painted. Price for a starfire pearl is $1308.90
2013 CT200h: Bumper: Spindle Bumper Upgrade - Sleek...
On April 26, 2012, Toyota Motor Corporation filed four trademark applications in Canada and one in the U.S. for Spindle Grills:
Canadian TM Application No. 1575185:
Canadian TM Application No. 1575186:
Canadian TM Application No. 1575191:
Canadian TM Application No. 1575192: