i changed my V&H from stock to "quiet" . I need use a 5 pound slide hammer to remove. Even so I bent the retraction rod and need to repair. PLUS the old baffles left behind baked on debris on the interior of the cans. I used a "flapper" on a drill to clean the pipe interior (about 2 hrs) > I lubricated the exterior of the new baffles with high-end-heavy grease. They went in snug giving challenge to lining up the secure screw