Welcome to the forum and congrats on your new Wing. I don't know if there is anything quieter than the stock Wing exhaust. Perhaps the exhaust system has rusted out (it is 20 years old) or maybe the previous owner modified it. I'm not sure how you would check the baffles, except to take the exhaust off and see if anything rolls around in there which would indicate a problem. If you have to replace the exhaust you can check places like Ebay or Craigslist for used ones, or you could go for new replacement OEM pipes.. Good luck and ride safe.