• ClassyDave@lemmy.world
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    1 year ago

    In a lot of places a turbo is considered a muffler or sound damping device which allows for exhausts to be straight piped after the turbo legally.

    • CADmonkey@lemmy.world
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      1 year ago

      For a short time I worked in a factory that made school busses. They used big diesel engines and not a single one of them had a muffler. The SCR and the turbo made them plenty quiet.