So, some information.
If you order the STI fender emblem, it will not work with the standard kouki fender vents. The STI fender vent is actually slightly different and the black vanes themselves are shaped differently to accept the badge. I ordered both the individual emblems and the entire fender garnishes just to be sure.
Shown is the entire STI fender garnish, which you will need if you want to run the emblems (which come attached to the garnish.)

I got a contrasting color because I paired them with the TRD side aero covers.