I just put these in my evoIV. I got them from Indigo-GT shipped to Canada fast and a nice price.
I put them in myself and they were pretty easy. They don't come with topmounts. In fact I didn't even remove the rear strut bar or mounts from the car at all.
I put them at the basic position listed in manual at 30mm of thread from the bottom. They lowered the car about 1.5" The only thing I didn't like about the install is the factory rubber cup in the back is shaped for a spring with rounded coil at top. the tein coil has a flat profile. It still fit in fine but I may change that later.
I set them at 8 clicks which should be middle range. Then I drove 3000kms round through the Rocky Mountains to the pacific coast. It was a great drive through the twistys and even my wife commented at how smooth the ride was. I'm really happy with them but I've not had others to compare.