I called Howe Racing yesterday and got a very apathetic response. The guy I spoke to had no opinion on the use of Howe ball joints on a street driven car and didn't seem to care either. I did find out that Howe offers a dust boot that can be used with their ball joints. Some of the companies that make urethane suspension bushings also make universal dust boots, that could be used. That's the only problem that I can see with a street driven car - there's a need to keep the dirt away from the ball. Racing cars apparently get such frequent service that it's not an issue.