u/gtmonza

I got a weldina S-Tune exhaust recently fitted to my '08 HR. I've got a bit of metallic fluttering noise around 2000 rpm, mainly under load accelerating but it is possible to hear it in neutral parked up too, it's just less obvious. Issue is pointing to a potential loose baffle or something in the muffler box. Is it worth it to open up the muffler and repair it or is a waste of time?