Exhaust & muffler
Sound advice about your exhaust system
Your vehicle’s exhaust system cuts noise and polluting emissions, keeps toxic fumes out of your car cabin, helps your engine run properly and assures the best possible fuel efficiency–if the system is properly maintained.
If your vehicle lacks power, your catalytic converter could be blocked, which impedes gas flow and impacts performance.
NAPA AUTOPRO tip
Have your NAPA AUTOPRO technician inspect your exhaust system during seasonal maintenance, especially before and after the winter season, which can be hard on mufflers.
TURN DOWN THE VOLUME
That loud, rough and rumbling noise coming from your exhaust pipe tells you there’s a problem. Delaying repairs could cause more problems and increase your repair costs.
Vibrations could mean a hole, a disconnection, or a malfunction. This isn’t only an indication that there’s a problem with the muffler or exhaust, it could mean your engine is not performing properly.
USING MORE FUEL
A loss of fuel efficiency could signal a leak in the exhaust system that forces your engine to work harder, which burns more gas.
CATALYTIC CONVERTER NOISE
The catalytic converter turns harmful pollutants into less harmful emissions. A failing catalytic converter can sound like metal maracas when your vehicle is idling and/or illuminates up your check-engine light.