I’m not a fan of air bladder silencers. Not only have you added maintenance tasks and another point of failure we have had to replace several already. So compared to old school maintenance free failure free silencers I’m a hard no.
I was suggesting a second muffler for the exact reasons danzeitz said. I'm also not a fan of adding things that can fail and requires maintenance when it's not absolutely necessary.
We did try tightening the bolts first, slight improvement. I did find the silencer core with springs through Vertical Express for $288.14 each! A complete new silencer would be probably be less. Thank you for the quick replies. 👍😎