Are you hearing banging, knocking, or rattling sounds from the rear of your vehicle? If so, there is a high possibility of your vehicle suffering from an issue with the exhaust system. Do you want to know the cost to replace muffler and exhaust pipe? If so, you have come to the right place.
The exhaust pipe and the muffler are two of the most critical parts of a vehicle’s exhaust system. Although these parts are designed to last for a long time, different circumstances can cause them to get damaged and develop faults. Muffler and exhaust damage are issues that owners should take seriously, as they can cause damage to the engine over time.
Here, we will tell you all about what a muffler does and the costs associated with replacing it. After going through this article, you’ll know exactly what to do the next time your vehicle develops an exhaust issue.
What Does A Muffler Do
Before talking about the cost to replace muffler and exhaust pipe, let’s take a closer look at what the muffler does. The main responsibility of the muffler is reducing or muffling the noise produced by the engine. Without a muffler, a vehicle would make loud growling noises instead of the minor rumbles people are used to hearing.
The muffler is attached to the final part of the vehicle’s exhaust. Exhaust gases pass through it before exiting through the tail pipe. However, some modern vehicles come with two to three mufflers. Usually, the second, muffler is located at the center of the exhaust system.
Mufflers contain internal chambers, inside which sound waves bounce back and forth. Because of this bouncing, the power of the sound waves is diminished when they get released to the outside. Next, let’s take a look at the inner workings of a car muffler.
How Does A Muffler Work
As we discussed before, car mufflers reduce the noises coming from the internal combustion engine. The internals of the muffler has been designed to fulfill this goal as efficiently as possible.
Inside a muffler, we can find a set of tubes with holes drilled into them. These have been placed in an exact way in order to reflect the sound waves so that they cancel themselves out. Some people even compare the tubes and chambers of the muffler to a musical instrument.
Sound waves from the engine enter the muffler through a central tube. Then, they will hit the back wall before entering the center chamber of the muffler through a hole. Later on, the sound and gases will circulate through the various tubes several times before exiting the muffler.
Muffler Replacement Cost
If your vehicle’s muffler has been damaged beyond repair, the only viable solution is to replace it with a brand-new part. The muffler replacement cost depends on several factors. They are,
- The Type Of Muffler
- Vehicle Manufacturer
- Additional Components Required
We will now take a closer look at how each of these factors affects the muffler replacement cost.
Cost To Replace Muffler And Exhaust Pipe #1 – The Type Of Muffler
You can find aftermarket mufflers priced at different price ranges. Typically, the cheapest mufflers can be had for around $25 – $50. These generic parts are made to fit a whole host of vehicles. As a result, the fit and finish of the product may not be up to standard.
Additionally, these inexpensive mufflers are made using lower quality materials, so the longevity of these products is also questionable. On top of that, these mufflers can actually cost more to get installed, as they are not specifically designed to fit your vehicle.
On the other hand, you can purchase a midrange muffler by spending around $50 – $100. These are best suited for normal passenger vehicles like mid-size sedans. Furthermore, if you own a luxury vehicle, you might have to go for a top-of-the-range performance muffler. These are priced in the $300 – $500 range and are made from the highest quality materials.
Cost To Replace Muffler And Exhaust Pipe #2 – Vehicle Manufacturer
The cost of replacement mufflers varies depending on the vehicle’s make as well. Unsurprisingly, mufflers of luxury vehicles like Mercedes and BMW cost more than that of a Toyota or a Nissan. Other than the brand, the driving conditions you plan to use the vehicle also have an effect on the muffler cost.
Mufflers of vehicles that are frequently driven through rain, ice, or snow go through more wear and tear. Moreover, if you come across rough roads in your day-to-day commute, we recommend you invest in a higher-quality muffler as it will give you more durability.
Cost To Replace Muffler And Exhaust Pipe #3 – Additional Components Required
While replacing the muffler, you might have to replace some additional components of the exhaust system as well. Some of the most commonly replaced parts include hangers, gaskets, and silencers. Generally, you should expect to spend around $20 for these bits.
Automotive experts recommend the use of OEM parts when replacing components like mufflers. Additionally, if you get the muffler replaced by a certified mechanic, it won’t have an effect on any manufacturer warranties.
If your muffler is only lightly damaged, here’s some good news for you. You can save some money by simply getting the fault repaired. In the next section of this article, we’ll tell you how much it costs to repair a damaged muffler.
Muffler Repair Cost
The cost to repair a faulty muffler mostly depends on the type of damage it has undergone. For example, patching a small hole in the muffler would cost significantly less than repairing a larger part.
If you feel that the muffler of your vehicle has been damaged, the first thing you should do is carry out a visual inspection. If you don’t observe any damage, your next course of action should be to take your vehicle to a muffler shop. Typically, these shops will carry out an inspection of the exhaust system free of charge.
If rust or other damages have caused a hole to form in the muffler, it can be easily repaired using tape, a patch, or sealing tape. However, fixing holes this way is only a temporary solution, as another hole appearing in a few months is highly likely.
Other common muffler repairs may include replacing gaskets, fixing broken clamps, and replacing piping can cost anywhere between $30 to $400. However, it is important to get the opinion of an expert before going ahead with any repairs.
Exhaust Manifold Replacement Cost
The exhaust manifold is another component just as important as the muffler. The manifold sits at the front of the exhaust system, in between the catalytic converter and the cylinder head. It guides the fumes from the engine cylinders towards the muffler with the use of connected pipes.
Due to the location of the exhaust manifold, performing repairs on it can be quite tricky. Usually, it takes three to five hours to replace this component. Although exhaust manifolds are designed to last between 60,000 to 100,000 miles, the rigors of daily use sometimes cause the manifold to fail prematurely.
The leading factor behind exhaust manifold damage is heat. As the engine warms up, the heat is transferred to the exhaust manifold as well. This constant cycling of heat leads to the formation of cracks along the manifold, ultimately resulting in its failure.
The replacement cost of an exhaust manifold ranges from $150 – $1200. Additionally, replacing the brackets and hangers of the exhaust manifold will cost you about $300.
Exhaust Replacement Cost
Leaving muffler damage unfixed for an extended period of time can lead to extensive damage to the entire exhaust system. For example, if the muffler has rusted extensively, the rust can make its way up the exhaust pipe and spread across the system.
In modern vehicles, all the exhaust components including the tailpipe, muffler, and catalytic converter all come bolted to each other. This makes replacing these components significantly easier. The average repair cost of an exhaust system is around $1000.
Types Of Exhaust
We can find several types of exhaust systems in modern vehicles. A few of the most common varieties are,
- Single Exit Exhaust
- Dual Exit Exhaust
- Dual Side Exhaust
- Opposite Dual Exhaust
- High-Performance Exhaust
1. Single Exit Exhaust
Single exit exhaust systems are one of the most commonly seen exhausts out on the market today. These come as standard on most vehicles, and exit through the passenger side of the vehicle. Although they aren’t the most efficient type of exhaust out there, these are the most cost-effective in terms of production.
2. Dual Exit Exhaust
As the name suggests, dual exit exhaust systems come with two tailpipes that exit at the rear of the vehicle. However, the design of these systems is similar to that of single exit exhausts. Dual exhaust systems are commonly found in sports cars, as they give vehicles a sporty appearance.
Another advantage of dual exit exhausts is improving the engine note. Due to this reason, outfitting vehicles with a dual exhaust system is a popular modification among gearheads. The pipes not bending around the wheels is another difference that sets dual exit exhaust systems apart from others.
3. Dual Side Exhaust
Vehicles with dual-side exhaust systems also have two tailpipes next to each other. However, they exit at the side of the vehicle, as opposed to the rear. These exhausts have a number of advantages, including improving the engine note, effectively releasing more gases as well as improving the overall performance of the vehicle.
4. Opposite Dual Exhaust
Opposite dual exhausts are for those who want to give their vehicles a tougher appearance. They are best suited for situations where the dual exhaust system is unable to have any bends. Opposite dual exhaust systems are mostly seen on vehicles that carry heavy loads.
5. High-Performance Exhaust
High-performance exhaust systems (similar to the NB Miata catalytic converter) are designed with the main goal of improving vehicle performance. These systems help the engine breathe better by letting the exhaust gases flow more freely.
In addition to increasing engine horsepower, high-performance exhaust systems give the exhaust a powerful growl as well. If you want to give your vehicle a powerful sound along with improving its performance, high-performance exhaust systems are the way to go.
Other than exhaust systems, you find different types of mufflers out on the market as well. The 3 most common types of mufflers are,
- Chambered Mufflers
- Turbo Mufflers
- Straight-Through Mufflers
1. Chambered Mufflers
Chambered mufflers work in a similar way to noise-canceling headphones. Inside these mufflers, sound waves that enter it are redirected back onto themselves. This results in the sounds canceling themselves out, making the exhaust quieter in the process.
2. Turbo Mufflers
Turbo mufflers are the most common type of muffler present in modern vehicles. They work in a similar way to chambered mufflers. However, there is one major difference.
You see, a turbo muffler contains a number of perforated tubes which are surrounded by sound-deadening materials. The exhaust gases pass through these components, which quietens the sound significantly. Furthermore, this makes turbo mufflers the most effective type of muffler out of the bunch.
3. Straight-Through Mufflers
In both turbo and chambered mufflers, the exhaust gases circulate inside the chambers before being released to the outside, This is not the case with straight-through mufflers. Here, the exhaust gases pass through the muffler via a perforated pipe.
This pipe is surrounded by fiberglass and steel wool for insulation. Straight-through mufflers convert sound waves into heat in order to minimize the exhaust note. This does not muffle the sound a lot. Instead, it gives it a more refined tone. These mufflers also give the vehicle a performance benefit by reducing back pressure.
So, now you have a clear idea about the different types of exhausts and mufflers out on the market. With the proper knowledge, replacing a muffler is something you can carry out in the comfort of your home. Next, we will guide you through this process.
Replacing the muffler by yourself will save you a significant amount of time and money. All you need to install a muffler are some basic tools. There are even muffler repair kits designed specifically for this purpose.
To start off, park your vehicle on a flat surface. After that, disconnect the car’s battery and raise it up using jack stands. Spray some rust penetrating fluid onto the muffler clamps before loosening its nuts. You can use either a socket wrench or even your hands for this.
After that, you should be able to slide the muffler away from the exhaust pipe. In case the two parts are welded together, you’ll have to use a cutting tool or a hand saw to separate them. After separating the two components, unhook the rubber muffler mounts to completely remove them from the vehicle.
The next step in this process is installing the new muffler. In order to do that, you should first attach the hooks to the rubber muffler mounts. Then use an exhaust sealant to coat the end of the new muffler’s pipe and slide it into the correct position.
You should correctly secure the new muffler using the claps before lowering the vehicle and checking for leaks. One of the easiest ways to detect a leak is by shining a light onto the exhaust system as you are inspecting it. As leaks are visible under light, this will help you to easily spot them.
Symptoms Of A Bad Muffler
One of the easiest ways to identify a faulty muffler is through the various indications that it gives off. Some of the most common symptoms of a bad muffler are,
- High Exhaust Sound
- Knocking Sounds From The Exhaust
- Reduced Fuel Economy
- Engine Misfires
- Odors From The Exhaust
- Performance Issues
- Buildup Of Moisture
Cost To Replace Muffler And Exhaust Pipe, Symptoms #1 – High Exhaust Sound
The muffler is the part responsible for reducing the exhaust sound, so it shouldn’t be a surprise when we mention that abnormally high exhaust sound is one of the main symptoms of a bad muffler.
However, the high exhaust sound can also be the result of a leak at the manifold gasket. No matter the cause, it is recommended that you take the vehicle to a mechanic in order to get the issue fixed.
Cost To Replace Muffler And Exhaust Pipe, Symptoms #2 – Knocking Sounds From The Exhaust
A knocking or banging sound coming from the rear of the vehicle may possibly be due to a loose or broken muffler mount. If this is the case, the muffler might be hanging down or dragging on the road.
On the other hand, if you notice a rattling sound from the exhaust, it might be high time to replace the catalytic converter.
Cost To Replace Muffler And Exhaust Pipe, Symptoms #3 – Reduced Fuel Economy
A faulty muffler limits engine performance while simultaneously putting it under more strain. As mufflers are an integral part of a vehicle, an issue there causes the whole system to go haywire. This messes with the vehicle’s fuel economy, causing you to spend more money at the gas station.
Cost To Replace Muffler And Exhaust Pipe, Symptoms #4 – Engine Misfires
The engine needs an exact fuel-air mixture to carry out the combustion process perfectly. But, when there is a muffler issue, the fuel-air mixture inside the combustion chamber can get altered. Ultimately, the end result of this is an engine misfire.
Cost To Replace Muffler And Exhaust Pipe, Symptoms #5 – Odors From The Exhaust
The exhaust gases of vehicles contain several toxic gases, including the likes of formaldehyde, benzene, nitrogen dioxide, and sulfur dioxide. Not only are these gases poisonous, but they also give off strong and pungent orders as well.
If you notice strong smells coming from the exhaust (so much so, that you wonder how to get rid of cigarette smell in car), the muffler might be cracked or damaged.
Cost To Replace Muffler And Exhaust Pipe, Symptoms #6 – Performance Issues
Modern cars depend on advanced sensors to make them function properly. It is possible for a faulty muffler to affect the readings of the O2 sensor.
In return, incorrect information will be sent to the ECU, affecting vehicle performance. With dangerous O2 sensor readings, the engine will not perform at its best, resulting in poor performance.
Cost To Replace Muffler And Exhaust Pipe, Symptoms #7 – Buildup Of Moisture
Moisture can damage the exhaust system in multiple ways. It can damage the silencer’s surface as well as the internals of the muffler as well. However, a bad muffler will allow moisture accumulation, and if it reaches a dangerous level, the whole muffler will immediately break down.
Having a vehicle with a muffler of exhaust fault is never a good idea. We say this because exhaust and muffler damage has a number of adverse effects on the vehicle, like limiting performance, increasing fuel consumption, and most importantly, making your vehicle sound ridiculously louder.
FAQs On Cost To Replace Muffler And Exhaust Pipe
How Much Does It Cost To Straight Pipe A Car
Straight piping cars are a popular modification amount young gearheads. In short, straight piping is the practice of replacing the catalytic converter and muffler with a long exhaust pipe. It costs between $1000 – $2000 to get a straight pipe system installed by a professional.
How Much For Muffler Replacement
If your vehicle’s muffler has been damaged beyond the point of repair, then it is time for a muffler replacement. Depending on the type of vehicle, muffler replacements cost anywhere between $25 – $500.
How Much Does It Cost To Fix An Exhaust Leak
An exhaust leak is a minor issue that any home mechanic can fix in their garage. It only takes around $10 to apply a temporary fix to the issue. However, applying a permanent fix from an expert will cost you between $100 – $400.
How Much Do Exhaust Cost
The cost of an exhaust system varies between vehicle models as well as the type of exhaust. On average, exhaust systems cost between $300 – $1200. Additionally, you will have to pay for labor in order to get the exhaust system installed as well.
How Much Does It Cost To Straight Pipe A Truck
It costs around $1000 to straight pipe a truck. However, the practice of straight piping is prohibited by the law in some states, and it is harmful to the environment as well.
These tools have been tried and tested by our team, they are ideal for fixing your car at home.