I purchased these because I wanted to lower the front end of my Elise without having to reduce the length of the damper bodies. At stock ride height, they were already at the lower end of the spectrum for compression stroke. Lowering the car ~20mm would put them well into the bump stops over reasonable bumps.
In the box, 2X of these sets:
If you've worked on the suspension previously, tear down is straight forward. A ball joint separator like this one
from Harbor Freight will be your friend when separating the lower ball joints. I also installed machined steering arms at the same time, so I separated upper, lower and steering ball joints.
With the lower arms accessible, remove them and use a press or keep them installed in the car and use a bolt-together-style removal tool... like this one.
Installation is just the reverse of the process.
Boot install is easy:
Inner view of the spindle assembly:
Lower view of the ball joint:
While the ball joints lower the front end about 25mm, I installed stiffer springs at the same time... so I was guessing at the ride height.
Here's a shot of the coilover assembly and remaining compression stroke remaining with a ride height of 100mm:
I'll likely raise it about 10mm for a final ride height of 110mm.