I've got mine on route from Germany, but have also found a dealer willing to supply the "Aerodynamic package" which isn't available in the UK yet.
This consists of:
But it seems you can still buy each bit seperately...
"Ok I tell you the prices. But it would be better to check it up again, when you got your car. We need to know the exactly configuration.
The price for the sideskirts is 145Euro each side. You can paint them or you mount it in black matt finish. Or you put the decals on it. Price 100 Euro.
Frontsplitter for cars with or without M Aero package left and right: 530 Euro. Normally the the rear of the car can be modificated, too. The price for this is about 490 Euro.
But we really have to check, when you got the chassinr."
P.S my F31 is due next week