Car/Truck mufflers do amazing work muffling noise. A car is nearly silent when running with a muffler, compared to what it would sound like with open manifolds. When I fire up my Honda push mower, the whole neighborhood knows about it, and it’s actually kinda quiet as mowers go. So eli5 : Why can’t lawnmower mufflers work like automotive mufflers?
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It’s a lot cheaper to buy an electric lawnmower than to put a car-grade muffler on a lawn mower. Nobody would spend 2-3X as much on a “quite mower”. Car noise is easier to control, because cars are huge and you can have space for all sorts of dampening devices, water cooling, exterior panels with sound insulation, … that would’t make any sense in a mower.
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