My Koni's are raised 18mm. They are "SO" close with my 15" wheels
You can only raise the Koni's 18-19mm. After that you're bumping up against the flare in the strut body. Now, that being said, there are other methods of raising them. I believe Racer Chris can do about anything.
Yaaa-Rooooon... I like early Koni or Bilsten complete front ends. This way you get the 19mm t-bars and thru-body sway bar mounts. Koni's are adjustable. Bilsteins are solid right out of the box.
Your choice.