many suspension manufacturers, top of the range being the like bilstein, eibach, ohlins, sachs etc. It all depends how you use your car. If you plan to change a set up for example for a track day you can go for fully adjustable suspension. Some peeps have b16 bilstein which is top of the range You can also adjust height of your car.
If you are just looking for fit and forget suspension great for fast driving and occasional track day bilstein has b12 set I use and I can highly recommend. You can go for various car lowering options from 2.5 cm to 4 cm but you can't adjust.
I think there is a group buy as well at the moment
Paul