For the front:
This is a bit more involved, but not hard at all. Disassemble the OEM MacPherson Struts. Again, there are thousands of write-ups on how to do this, so I’m not going into detail. The spring is not under much pressure.
Next, you need to find the center of the bottom of the strut, and drill a small hole to release the gas pressure for safety reasons.
Then, you must cut the top of the strut around the housing so that you can remove the old dampers. You can use anything for this, a pipe cutter, a sawzall, hack saw, cutoff wheel, etc. You don’t need to go all the way through the strut and the shaft, just through the housing.
The OEM damper comes right out.
Clean up the rough cuts or sharp edges left over from the cut.
Next, drill out the whole at the bottom of the strut to spec.
Carefully insert the new damper into the OEM strut housing, and carefully pound it into the housing.
Once it is down far enough for the bolt on the bottom to catch the threads, draw the damper in the rest of the way by tightening that.
And you’re done. Reassemble the Struts and put them back into the car.
We went slow on the first strut because we were double checking our work, but I think the second strut took all of 15 minutes to build. This really is an easy mod, and the end result is a product that wipes the floor with those hack coilovers.
Big thanks to wrxracer519 and to Big-E for all the help with the car!