Before:
After:
GT3 brake ducts installed.
I've also replaced the wheels, since the front wheels were very worn in the inside. I found a set of second hand ones with the exact same rims that I had before and nearly brand new tyres. All of this was actually done yesterday.
Last week I got the brake fluid replaced with ATE Typ 200.
Today I went to get a wheel alignment, since the wear on the front tyres suggested way too much toe out, which turned out to be the case. That is now in order, but the guy in the shop wasn't very confident when it came to fixing the exaggerated negative camber, so that's not taken care of yet.