I'm considering buying V&H Cruzer pipes to replace the stock one for my 2005 C50T for better and louder sound, but wonder if anyone here thinks they're too loud at highway speeds for prolonged periods of time? I plan to ride cross-country this summer, does anyone think they're too loud for 1-2 hours at a time at 70-80mph? By the way, I ride with a full-face helmet most of the time which blocks some sound of course, and sometimes with a half-face helmet with no ear cover. And what's the difference in gas mileage between the stock exhaust and this one? Thanks.