Yesterday I test rode a 2009 Sprint ST. I loved the bike, but I didn't love the noise. Just wondering if these are a loud bike or if this one might have been modified? It appeared to have the stock exhaust. On idle and riding at speed it wasn't too bad, but there was one particular spot in the rev range (around 3krpm) where the sound reverberated through my entire body. It was like I had a trombone up against my ears (one on each side) and they were blowing as loud as they could. Almost instant headache. I have sensitive hearing and always wear earplugs, except for on a very short ride. As this was a short test ride I opted to not wear them. I'd just test ridden two other bikes with no plugs with no issues. The Sprint was so loud that while earplugs would help, the sound would still irritate me no end - especially as the bike felt comfortable on suburban streets at that RPM. Is the Sprint ST typically a loud bike or is it likely this one has had the baffles played with? Unfortunately they didn't have another that I could compare with.