something. And once you know what that silver hair from the exhaust actually is, the fix becomes a lot less mysterious.
What That Silver Hair Actually Is
Inside a muffler there’s more than empty metal. Sound-absorbing fiberglass packing lines the inside to soak up and soften the noise your engine makes. It sits in the space between the perforated inner pipe that carries exhaust gases and the outer shell you can see from under the car.
That material does the dirty work of keeping your car from sounding like a
