I am currently using the Height Adjustable:
H&R Coilovers (part # 29177-1) -- Lowering range--> Front: 1.58-2.78" Rear: 1.19-2.38"
I think the H&R kit uses the B14PSS system from Bilstein
since they looks the same.
Overall it's a really good setup. The picture I have included is the maximum drop with 18 inch wheels and still clear the major speed bumps in Sweden.
Although I have to crank up the car to be able to have more than 2 passengers + luggage and manage my aggressive driving. I have highten it by 0.5cm at the front and 1cm at the back. This gave the car a more rigid feel.
The car still have rolls and will be needing additional stabilizers/ anti-roll bars to be installed at the front and back of the car.