I have the Spax kit in-hand as well, though it will be a few weekends before I can install it front and back. Would love a brief writeup.
Install was pretty easy, but I had the benefit of a pair of trolley jacks to get the car easily lifted. A simple piece of 2"x1" widthways with a jack under each end and up she comes. Rears need the top mounts undone and then the car jacked to expose the bottom bolts beneath the car (careful not to stretch the brake hose) and fronts are easy as they just need the weight taken off the suspension to release the tension.
Measure body-to-floor heights before you start, so you have a reference point.
The point of these uprated Spax shocks are 2-fold;
1) They are an uprated unit, with better components and improved high speed damping. They are adjustable to suit your driving style and roads and have height adjustable platforms....
2).... which in theory should allow you to lower the car to such a point that the track rod arms are horizontal and therefore better at handling the toe-change during suspension movement, ie: bumpsteer.
I have yet to prove 1) but have failed on 2) unfortunately, in that my car won't sit low enough to get the arms horizontal due to the shock body hitting the exhaust. I might look at trying to 'tweak' the exhaust slightly out of the way, but I doubt there's enough movement available. As a result, I theoretically still need the Comfort Kit, but will be going the Empire route instead, which is the proper fix. However, I firmly believe that those who have cars with greater shock-to-pipe clearance will be able to improve their steering by getting those arms parallel to the ground, which is what the Comfort Kit does. This will help a lot.
