I have a Predator 212cc on my snowblower and it is a lot quieter than the anemic Tecumseh 5hp that was on it. The Predator 212cc has a multi baffle muffler which is modeled after the Honda designed. Much quieter especially if stock with the factory intake. I have a baffle straight pipe on my 50+ mph Rupp Roadster 2 with Mukuni and that is louder along with the bilit rod and flywheel had it up up to 52 mph on a short drive last fall.To prevent Carb. icing, snow blowers use a heat box to enclose some exhaust heat . A bigger muffler would run cooler,and may require a different heat box . I would like to hear how HF ' Predator ' engine converters handle this .
My predator iced up, removed air filter, much better . Would like to see a * Winter * version of these engines .