The 9 Best Mufflers of 2021

Jerry Wilson
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If you’re an avid motorcyclist, you have probably already experienced your fair share of exhaust system issues. Fortunately for you, exhaust and muffler technology has come a long way over the past few decades, resulting in some of the best mufflers invented all made available for the exclusive use of motorcyclists.

In this article, I’ve put together a small guide to the 9 best motorcycle mufflers of 2021. You might end up being surprised about how far muffler technology has come in the last few years. There are great mufflers out there for you, whether you are looking for carbon fiber, steel, stainless steel, aluminum, ceramic, titanium, or any other material.

Flowmaster 817633 Outlaw Muffler KitBest OverallFlowmaster 817633 Outlaw Muffler Kit
Thrush 17715 Turbo MufflerBudget PickThrush 17715 Turbo Muffler
Vibrant 1141 2.5" Ultra Quiet ResonatorUpgrade PickVibrant 1141 2.5" Ultra Quiet Resonator

1. Flowmaster 817633 Outlaw Muffler Kit

Our rating: 9 / 10

Flowmaster 817633 Outlaw Muffler Kit

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  • Tunable
  • Easy to install
  • Less expensive


  • May be too loud for some
  • Not designed for racing

The Flowmaster 817633 Outlaw Muffler Kit for Ford F-250 is one of our top picks because of its advanced octave-division technology. It makes their mufflers louder than other straight-through mufflers. The result is a good excellency balance of sound and performance. This high-performance muffler delivers an aggressive low-end growl without destroying the stock rumble. It increases the performance of your truck while at the same time saving you money. This is a simple mod that isn’t as risky as several other exhaust and engine modifications on the market.

This exhaust kit is both reliable and affordable. It can be installed quite easily; it comes complete with all parts needed for installation (you’ll only need a few basic hand tools).

The elimination of excessive backpressure allows both fuel economy and power to increase without reprogramming the fuel computer. This muffler kit comes with a variety of flashy tips, so you have quite a bit of choices in aesthetics and style.

2. Vibrant 1141 2.5" Ultra Quiet Resonator

Our rating: 9 / 10

Vibrant 1141 2.5" Ultra Quiet Resonator

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  • Actually lowers sound of 2.5″ pipes
  • Easy to install
  • Doesn’t need a resonator inside

The Vibrant 1141 Ultra Quiet Resonator fits perfectly onto 2.5″” pipes and intercoolers. It’s made of black wrinkle powder-coated aluminum and features a welded “V” elbow joint.

All you have to do is remove the end-cap of the pipe you’re connecting this to, slide the Vibrant resonator onto the pipe, and then put your cap back on for a flush look.

Installing the Vibrant 1141 Ultra Quiet Resonator makes a dramatic difference in how loud the engine noise is. Compared to a common chrome resonator, you’ll notice an immediate drop in the sound level.

3. Thrush 17651 Welded Muffler

Our rating: 9 / 10

Thrush 17651 Welded Muffler

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  • Stainless steel construction
  • Lighter weight than a comparable 16 gauge muffler
  • Lifetime guarantee
  • Quieter than a 16-gauge muffler


  • Requires some welding experience
  • Requires an internal flange
  • Takes longer to install

Are you looking for a quieter, stronger muffler for your Harley-Davidson Iron 883 Sportster? Then the Thrush 17651 may be for you. It’s a stainless steel weld-up muffler that moves your bike from 16 to 17 gauge. I’m personally a big fan of the 16-gauge mufflers, but if you’re looking for a little more sound or a little less weight, then this may be something you’re interested in.

The 17651 is a bi-metallic muffler constructed of stainless steel which is lightweight when compared to the competition. Compared to the 16-gauge steel, it’s over two pounds lighter, and it’s quite quiet considering its sound level rating.

4. MagnaFlow 10416 Exhaust Muffler

Our rating: 8 / 10

MagnaFlow 10416 Exhaust Muffler

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  • 3-year warranty
  • Throaty exhaust note
  • Quiet operation


  • Not very effective at removing tailpipe and undercarriage noise
  • Must be shipped from Canada

According to our research, MagnaFlow is one the best brands for making mufflers. And the 10416 Exhaust Muffler is one of their top products that meets the emission standards of all 50 states. It gives a perfect throaty sound and is moderately priced. It comes with a lifetime warranty. Its made to make your vehicle sound great.

MagnaFlow is pretty easy to install. You will find that it comes with a lifetime warranty. The product is pretty affordable and provides you with a discount for your money. The brand aims at making excellent performance mufflers and hence, their products never disappoint.

5. Thrush 17715 Turbo Muffler

Our rating: 8 / 10

Thrush 17715 Turbo Muffler

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  • Dual, heat-resistant, steel baffles
  • Stong and durable

On this list, the Thrush 17715 Turbo Muffler takes the number two spot. We know turbos are brutal on exhaust systems, but this will give your favorite truck a longer life, especially in a city environment.

Another important thing to look for is heat resistance. While this is often overlooked, your exhaust needs to be able to resist high temperatures. This muffler is made of heavy gauge 13 aluminized steel that will stand up to anything. It's guaranteed to resist cracking, chipping, or separation, making it an excellent choice for anyone that's not afraid to beat on their truck.

The final thing to point out is the weight. Compared to the competition, this one is pretty hefty. However, that's an advantage when you're driving under extreme conditions. Make this your go-to exhaust for work.

6. Walker Exhaust SoundFX 18138 Exhaust Muffler

Our rating: 8 / 10

Walker Exhaust SoundFX 18138 Exhaust Muffler

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  • Durable
  • Low price
  • Classy looking
  • No modification required


  • Lacks power
  • Hard to install

This is a high-quality pea-style exhaust muffler that will fit tightly onto your motorcycle while giving it an awesomely cool sound. It is made out of 304-grade stainless steel, and it has been shown to be very durable. It can endure a lot of heat and it will still look awesome. It can even go through numerous washes and it will still look good. This muffler doesn’t require any modifications and it can be fitted in less than 30 minutes. However, it is a bit more difficult to install than other mufflers. One of the main reasons why it’s such a great muffler is the fact that it produces a really powerful sound. Of course, your budget should also be considered and this muffler is an excellent choice in that regard. The material used to make it is of a really high quality and it can go through a lot of heat. It’s a great muffler for anyone who wants a classy looking and effective muffler for their bike.

7. Walker Exhaust SoundFX 18558 Exhaust Muffler

Our rating: 8 / 10

Walker Exhaust SoundFX 18558 Exhaust Muffler

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  • Very affordable
  • Sturdy construction
  • Easy to install and uninstall
  • Comes with a universal clamp to fit a variety of vehicles.


  • Metallic sound
  • Louder than other models due to straight exit design

This Walker Exhaust SoundFX muffler is a simple exhaust pipe extension that quiets down your Harley Davidson. The straight exit design will give you a slightly louder exhaust note than other exit angle models. It’s not great at sound suppression, but it will reduce exhaust noise by about 1-2 decibels depending on your motorcycle.

The universal clamp will fit on pipes that range from 0.75 to 1.5 inches, and has an internal metal wire that keeps it in place throughout your ride.

The welds are rust proof, as Walker includes stainless steel hardware and gaskets with every pipe. The removable baffles and optional billet end cap are a nice touch.

8. Walker 17911 Economy Pro-Fit Universal Muffler

Our rating: 8 / 10

Walker 17911 Economy Pro-Fit Universal Muffler

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  • Inexpensive
  • Silencer is made of stainless steel

Walker’s Economy Pro-Fit universal muffler is one of the most popular among motorbike mufflers because of its super low price. The exhaust is made of stainless steel, so it’s definitely a fantastic choice if you’re looking for a cheap silencer.

However, it’s not the most convenient one to install. It can be a bit difficult to remove and install again, because it tends to slide around.

When looking for motorcycle mufflers, there are several ways in which you can cut corners: cheaply made, poor quality, and low-quality installation. Any one of these three factors could result in a safety hazard for you on the road. On the other hand, a high-quality exhaust will boost the power your bike has, improve aerodynamics, your handling, as well as the overall sound your bike produces.

9. Dynomax 17748 Super Turbo Muffler

Our rating: 7 / 10

Dynomax 17748 Super Turbo Muffler

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Frequently Asked Questions (FAQ)

What is the best sounding muffler?

Here are a few high-quality mufflers that will both fit your car and give you the outstanding performance and sound you want for your car’s engine:

K&N Performance Series High-Flow Conical – Despite being one of the most expensive mufflers on our list, this product will absolutely not let you down in regards to the sound quality. This black chrome-plated muffler has an exceptionally quiet performance. It will produce a strong performance sound without being far louder than a stock muffler.

HepuDiesel Diablo Exhaust – You might be surprised how affordable this product is. Despite being one of the most cost-effective products on our list, it still delivers outstanding performance and sound quality. This product is constructed out of stainless steel, and it gives a nice performance and noiseless sound.

What's the best sounding muffler for a v8?

If your car has a V8 then youre going to want an aggressive muffler to match. Instead of just getting a super loud muffler that’s not going to offer any other benefits, you would do well to check out mufflers like the FlowMaster 50 Caliber Series Performance Mufflers.

The 50 Caliber Series Performance Mufflers come in a wide variety of sizes; I’m sure there’s one for your car. They produce an aggressive V8 sound that will match any V8 you might have under the hood. They provide you with unsurpassed quality while also making your engine run more efficiently.

What is the most aggressive muffler?

The most aggressive muffler are the true short mufflers. These mufflers have a very short tail and are as a result the least restrictive of all mufflers.

The first thing you want to keep in mind when looking for a muffler is the note you want it to produce. For most people, they are looking for a deep, loud, and aggressive muffler note. But if you’re not looking for a loud note, or are looking to build a muscle car, then the note that you choose should take precedence over a deep, aggressive note.

With that said, the muffler note you want should also dictate the type of muffler you choose. The reason being that most OEM mufflers are simply too restrictive to produce an aggressive, but deep, note.

Is MagnaFlow better than flowmaster?

Both MagnaFlow and Flowmaster are very popular when it comes to performance exhausts, but what’s the main difference between the two?

Flowmaster offers a wider variety of exhaust systems for a variety of vehicles. Most Flowmaster systems also come with free shipping and a free lifetime warranty.

MagnaFlow offers a wider variety of mufflers and is the original muffler company. The company has been in the business since 1947 and is well known for its high quality customer service.

Both Flowmaster and MagnaFlow have been around for a long time, so you won't go wrong with either company. We've chosen to highlight Flowmaster here because of their competitive pricing and wide variety of products. However, if you're looking for an aftermarket muffler with a company that has been around for a long time, go with MagnaFlow.


Top muffler reviews in 2019! Our experts have selected the top 9 mufflers available on the market today. We are always on the lookout for tools that will make your life easier and this list is the result of our hard work to come up with a list of the best products available today. After going through all the tests, we have concluded that the best among the many options of mufflers is the one we have included in our top pick. Each of our top choices has strong points, and furthermore, there isn’t one model that is superior to the others in all categories.

Our Recommendation

Flowmaster 817633 Outlaw Muffler KitBest OverallFlowmaster 817633 Outlaw Muffler Kit
Thrush 17715 Turbo MufflerBudget PickThrush 17715 Turbo Muffler
Vibrant 1141 2.5" Ultra Quiet ResonatorUpgrade PickVibrant 1141 2.5" Ultra Quiet Resonator