^resonator changes the sound of the engine exhaust
instead of hearing BANG BANG BANG because the fuel in the engine detonates several times per second
you hear a more subdued tone or burbling drone
it should not be mistaken with a muffler because that one has a different function
fitting a resonator to suit kagalingan's fancy of course doesn't come cheap
because you have to alter the sound wave by carefully shaping the exhaust









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