During those repairs, we installed a set of frame sliders ($186) and a cool titanium performance muffler ($835 ouch!), both from Benelli's accessory catalog. The muffler allows a nice, deep tone that's not too loud; and a dyno run showed that not only does the muffler boost power a tiny bit in the midrange and top end, but the ingestion of dirt apparently hasn't caused any immediate harm to the engine. In fact, Benelli's tech people told us not to worry and just keep riding it. So we will—and, hopefully, much, much more often.