MBR2003,
The stock KDW's are actually only summer tires. They aren't to be used in snow. You could try the KDWSs if you want a similar all season. I had them and didn't like them. If you don't drive the car in the snow, I would go with the SZ 50 EPs. Simply awesome tires with one third the noise of the abnoxious KDW's!
-Andy