So, with installing the tS STi badge, I had to uninstall the left hand duct in the corner of the bumper grille as the mounting bracket for the badge installs in its place. However, when I took the duct out, it left a hole where my grille mesh didn't cover. So, I bought another duct, cut it down, and fit it to fill in the hole that was left. Here's the result.
Before installing replacement duct
Replacement duct before trimming
Section of duct used in bumper after trimming
After installing replacement duct
Please excuse how dirty she is...
Cheers
Chris