The front aero is a Volvo factory option. I've only ever seen it referred to as the "aero kit", not to be confused with the SE kit. I have the rear, too, but it doesn't fit right because the back of my car is so jacked up.
The front is on DYI coilovers using Koni Yellows and 450lb springs. It was originally lowered to accommodate a wider, lower offset wheel. The wheels I have right now might support dropping the front even more since they won't be rubbing on the fender as badly. The back is just cut factory springs. I couldn't drop the back any more because it would have rubbed on one of the tires.
The front is on DYI coilovers using Koni Yellows and 450lb springs. It was originally lowered to accommodate a wider, lower offset wheel. The wheels I have right now might support dropping the front even more since they won't be rubbing on the fender as badly. The back is just cut factory springs. I couldn't drop the back any more because it would have rubbed on one of the tires.