Masured right next to the mounting bushing with calipers, I was a little dumfounded when it came up as 20.25mm, I checked it in three different places, all similar measurements. I honestly can't believe it is that small, which is why I want to know what the base 04+ measures. Surely the compG is an upgrade, which makes me think the base would be even smaller, or hollow, or heaven forbid both. Maybe it is a different alloy or has a different heat treatment, I really have no idea how a 20mm bar could be part of a sport suspension package.
Also, I can't find moog links for the front without requiring 2003 or older LCAs.