Q: How many mufflers and resonators do i need on my car? Can I take 1 off and it still be legal?

asked by on January 15, 2017

How many mufflers do you need on your car? I want to take One of the mufflers off of my car. I don't want to take all of them off as it would be annoyingly loud, but i figured one off would make a nice sound. Is this legal? Or do i need to keep all of them on my car to pass inspections. (In Utah)

According to section eleven of the Utah Highway Patrol vehicle inspection standards any vehicle missing an exhaust system component or design feature, present at manufacture, will fail inspection. As important, the exhaust system of vehicles is designed to work with particular engines and removal or modification of components could compromise the service life and reliability of the vehicle. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I open the glove box?
The glove box gives you a section of added storage in front of the passenger seat. To open the glove box, pull on the handle on the front, and pull down on the glove box. To close the glove box,...
Vehicle starts runs then dies slowly
It sounds like the engine is flooded. This is most likely caused by the carburetor float being stuck, or the needle and seat is stuck open or not sealing. The flooding will cause the oil and filter to get overfilled...
Exssesive fuel consumption
If you are suddenly having poor fuel mileage then you should also have a Check Engine Light (https://www.yourmechanic.com/article/the-check-engine-light-demystified) illuminating. The light will most likely be indicating a problem with a sensor like an O2 sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement) or a mass air...
My oil pressure is low light came on
The oil pressure light will usually come on when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit (https://www.yourmechanic.com/services/oil-pressure-sensor-replacement) is not working...
Car has front differential leakage,front cover reseal leakage,rack and pinion leakage and oil cooler leaking is fixing worth it
To estimate a variety of leaks please request a leak inspection/diagnostic (https://www.yourmechanic.com/services/oil-fluid-leak-inspection). Most of the cost involved is likely to be labor, though, and consequently a mobile service such as YourMechanic (https://www.yourmechanic.com) will be ideal for you as none of...
Airplane sound while applying the brakes.
Hello, thank you for writing in. The noise you are hearing is very likely caused by the brake pads wearing down over time like they are designed to do. You are hearing the metal of the brake calipers rubbing on...
Lincoln navigator bounces
Hi there. Usually when a car will bounce frequently, it is due to a suspension component failure. If your Lincoln has air suspension, this is most likely the culprit. You might want to have a professional mechanic complete an inspection...
My dodge charger 2010 sxt keeps locking itself making the honk noise. How can I turn this annoying sound off? Please help.!
Sometimes a faulty battery can cause this. Have the battery load tested (https://www.yourmechanic.com/services/battery-is-dead-inspection) to determine its condition. Other causes of horn malfunctions are electrical shorts that occur intermittently as well as possible software glitches in the body control module and/or...
Honda accord p1739
Code P1739 relates to a problem with the clutch pressure switch, which may be electrical in nature or potentially due to low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service). Code P0730 relates to the transmission detecting an incorrect gear ratio. This may also be...

Related articles

What Does a Catalytic Converter Do?
The The modern automotive exhaust system is much more advanced than what was available even just a couple of decades ago. After recognizing that the average automobile was one of the primary sources of global pollution, the US government enacted...
How to Check for Water Damage in a Car
When When you are looking for a used vehicle, it is wise to stay away from vehicles that have had water damage. Water is an enemy of cars in many ways, causing damage such as: Electrical problems Engine damage Mold...
How to Polish Exhaust Headers
Due Due to the degree of heat and amount of exposure that an exhaust header is exposed to from your system (https://www.yourmechanic.com/article/how-exhaust-systems-work), it is prone to showing signs of wear and tear. So, on occasion, you may wish to polish...