Hi Alex,
I put the aero front bumper cover on my 03 3.0. Removing the old one and putting on the new one was fairly straightforward. You can search around on the web for documentation. I found some a couple of years ago.
Basicly you just have to undo a bunch of bolts and screws and take the old one off, move the fog lights into the new cover, and then bolt it on. The double kidney grills just snap out of the old cover and you push them into the new one. It took me about an hour to do.
Have fun!
Bill