I tried to do a search, but several types of kits showed up. And couldn't really find much info on these mesh wheels. Owner claims the wheels are oem Porsche option.
The wheels are definitely aftermarket, probably something from the Alt line-up . As far as the side skirts are concerned, several aftermarket companies offer that style, most notably being Precision Porsche . The faux front vent is an Ebay special .
Here is a pic of the front bumper. Is this some generic aftermarket bumper? Previous owner is an older fellow who doesn't seem to know much about the car.