How do you know where to drill the hole. I looked at these before I bought My KW's and I didnt feel all that great about spending that dort of money on an Insert Kit. DOnt get me wrong Im sure its very good, but when I asked Euro performance about fitment, and about what was involved in terms of drilling holes in the right place, and how much to grind off the strut etc, i got a bit of an inconclusive reply.
I know you are sayiing you are looking for Dampner adjustment also, however and variant 1s dont have this, but I can honestly say, even they did have it, I would see no reason to change it from the current setting. Its firm but no back breaking, and with the correct tyres drives like its on rails! Body roll is non existent, and the car is positive and precise on corners!
Agreed they are expensive, but then Tein are more so even if a correct Tein fitment could be sourced.
Go for the KW's mate, theyre 1st class! Stainless steel too - No corrosion!