Purchased these from Adaptec. Just arrived so I could not resist temptation to install asap.
Overall I am happy with the result. Did not want sticking out any more than this, so the 18mm and 23mm are definitely what I should have gotten.
The kit came with lug nuts (exact OEM look of them - one reason decided to go with them). However they did not provide lock bolts, which means I have to find a place that will sell the right size lock bolts (with the key of course if OEM one does not fit).

Here are the pics for your consumption (you who are contemplating the mod):

 

...more pics...


one thing I can say they definitely make a difference in driving. At speed the car is more inclined to go straight, with changes in direction being felt more at the steering wheel. I kind of like the input (more crisp/track like).
Have not tested in corners at speed but soon enough... ;D

 

Like it

I have the same wheel set for winter tires, and it make me nervous when I take 21'' summer off, and put winter on, coz, they are so much inside...

Where did you buy these spacers? How much do they cost?

 

Bough from adaptec (sponsor on here) for 230 shipped for all spacers and bolts included.

 

I use Adaptec spacers for my winter wheels. Good stuff.

 

yup. Glad I went with them. The lug nuts look just like OEM, nice and shiny. Now the only thing I need to do is find matching locking bolts as the ones from Adaptec came with just the non-keyed lug nuts.

 

Glad they worked out for you, looks great and I'm sure it drives great.

As far as the locking bolts highly recommend our good buddy Phil at Otis Inc. He's the man when it comes to specialty bolts. Here's his website.

http://www.otisincla.com/