Inside a muffler is a series of tubes with holes as finely tuned as an instrument, reflecting sound waves to nearly eliminate noise.
Keep an ear out for funny exhaust sounds: If you hear something, say something.
Loose or missing exhaust hangers cause a rattling underneath your car. (It’s an easy fix for us).
Missing hangers can cause the entire exhaust to fall off, which is much more expensive than replacing a hanger or two.
Catalytic converters turn harmful pollutants into less harmful emissions before they leave your car.
A failing catalytic converter might trigger your check engine light or sound like someone’s shaking a box of rocks under your car.
Driving with a leaky muffler or bad catalytic converter can lead to more expensive repairs.
When your exhaust leaks, your engine works harder, which requires more fuel.