So I just installed Weltmeister sway bars on my car and they were missing a couple of parts. Nothing irreplaceable but still a PITA to have to deal with on a not inexpensive part. I know of at least one other person that has had similar difficulties with their products. Has anyone else had problems with them?

I think that's been a common refrain for a lot of people. I was missing most of the nuts and bolts but as you said nothing I didn't have lying around. Tarrett bars are much better and their quality control I hear is at least good but the cost is why we stick with the Welts.