Perparing the struts: Since these are inserts, rather than a full strut, there are a few thing you need to do before you can install the struts. These inserts require the use of the stock strut housings. You must tap the housing, drain the hydraulic fluid, drill out a hole in the center of the strut housing and finally cut off the top of the housing. You must then insert koni tube into the housing and torque down the Koni with a screw at the bottom. Sounds a little difficult, but after doing one slowly, I was able to complete the other three in no time. It was much easier than I had feared. Installation: I had alot of help at one of the large install days at Milo's parking garage. With all the tools I needed and the car on jackstands, the actual time removing the stock suspension and installing the Koni suspension was about 3.5 hours. My install took a little longer due to two things. 1) We had a bit of a difficult time trying to figure out how to assemble the strut. Ultimately, we ended up using spring compressors to tighten down the springs enough to get the tophats on, then undoing the compressors a little to put tension on the springs (by letting them hit the tophat at the top and strut perch at the bottom), this prevented the spring from rotating as we tightened it. 2) I also stripped a camber bolt. Luckily someone there had an extra, but it was a bitch to get the stripped bolt off. I highly recommend grabbing a couple of extra camber bolts prior to install..... * After install you will NEED an aligment.....so factor that cost in. Daily driving impressions: While I have not played with the adjustment settings too much, and I haven't really done too much with the adjustments since the alignment was done, I can say that half way toward full stiff in the front and 3/4 toward full stiff in the rear makes the car feel very balanced without giving up too much in the way of ride comfort. In fact, unless you are going over a reaallllly bad road, you probably won't notice any degradation in ride quality, while gaining a much more balanced feeling car. The konis provide plenty of corner damping and allow the car to track better through turns. I wouldn't say it feels like its on "rails", but it is a much more confidence inspiring feel than the stock struts. In comparison to something like Tein flex's, I would say your 2/3rds of the way to the handling with maybe 1/10th the ride quality penalty. While I haven't driven or ridden in cars with the flexs extensively, I have had some experience and their is a big difference between the two, ride quality wise.... Perfomance Driving Impressions: I adjusted the konis to the aformentioned 1/2 stiff front 3/4 stiff rear on the recommendation of Gotsol and found this to be a failry neutral setup on an autocross course. It wasn't mind-bendingly rigid and there was still some noticeable body roll (which is not solely the Koni's fault), but the car was predictable, which is what you need when auto-x'ing. Let me say that with the my setup, I can now drive the car nowhere near its limits. I will need alot (read: years) more seat time before this setup is insufficient for my needs. Overall impressions: These struts are perfect for what I want them to do! Awesome road going feel and performance without turning my REX into a rattle trap, great increase in capability on the auto-x course and adjustability for changes in conditions (i.e. more camber changes in a lot, asphault vs. concrete lots, etc.), and still have the ability to take the wife and kid to dinner in the car without them complaining. If you don't NEED (or can't afford, don't want, etc.) coilovers, I don't think you will find a better strut out there. I certainly think these are the bang for the buck champs when it comes to non-coilovers. **The rest of my suspension setup includes: STi takeoff springs, Perrin Front and rear adjustable sways and kartboy rear endlinks. If you find any spelling errors, please pm so I can fix it, thanks! :wavey: