I installed my Progress sway bar 2 weeks ago. I felt the difference, but noticed an annoying knock somewhere around the rear springs. This is what I found.

The head of the bolts make the springs slightly off balanced. Plus as you can see, the heads pushed through rubber mounts.







Rubber mounts were torn in two areas.





So I bought new rubber mounts at Honda for $30, and also purchased better bolts from Panducky.



Now the springs sit better, and no more knock sounds.

 

cool
i'd recommend the panducky bolts to anyone to gets the progress rsb