Flowmaster Super 40 vs 44

Flowmaster Super 40 vs 44: Which Muffler is Better?

One way of massively upgrading the sound your vehicle produces is adding a new muffler. In our Flowmaster Super 40 vs Super 44 comparison, we’ll discover which muffler is best out of these two models.

Upgrading your muffler or your resonator can help your entire exhaust system work better too.

In our comparison, look at the different features of the Flowmaster Super 40 and Super 44, what their pros and cons are, and also if there are any alternatives out there.

Our Pick: Flowmaster Super 44 Series | Advance Auto Parts

Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the aggressive, deep sounding, high performing four inch case street muffler.

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Let’s first look at the main differences between the Super 40 and Super 44.

Main Differences Between Flowmaster Super 40 vs Super 44

The main differences between the Flowmaster Super 40 vs Super 44 are:

  • The Super 40 is made from aluminized steel, whereas the Super 44 is made from stainless steel.
  • The Super 40 has a thicker case, whereas the Super 44 has a thinner case.
  • The Super 40 has a wider design, whereas the Super 44 has a more compact design which allows it to fit on more vehicles.
  • The Super 40 produces a more subdued sound, whereas the Super 44 produces a deeper and more aggressive sound.

Exploring Flowmaster Super 40 and Super 44 Features

The Flowmaster Super 44 is a newer and upgraded version of the Super 40. Let’s look at some of the key features of these mufflers.

Sound

This is pretty much the main reason why you have a muffler on your exhaust system – to regulate the sound that it makes. They are both designed to help produce a more aggressive noise from your vehicle.

The original Super 40 was what really propelled Flowmaster into the mainstream. This muffler produces a real, classic muscle car noise which is mainly down to its thicker case. If you want something that has a deep and powerful sound, the Super 40 has been providing this for years.

It does produce a certain amount of noise inside the cabin of your vehicle. Even though it comes with ‘Delta Flow technology’ which is designed to keep noise outside, there is still a fairly high amount of interior resonance – we’ll have a look at this in more detail below.

The Flowmaster Super 44 is the newer and upgraded version – as we’ll find out with its more compact design.

When it comes to the noise levels, there is a bit of a difference with the Super 44. While the Super 40 is generally seen as being louder – although not as loud as some other mufflers – the Super 44 has a more aggressive bite to its noise. Really the main difference is that the Super 44 produces a deeper sound although there is some internal resonance too.

Performance

Mufflers, in general, tend to restrict the performance of your vehicle to an extent. While it won’t be a massive decrease, it can still be noticeable. If you are upgrading the muffler on your vehicle, you are essentially getting a louder noise at the expense of a bit of performance.

So, what about the Flowmaster Super 40 and Super 44?

The Flowmaster Super 40 does impact a bit on the overall power of your vehicle. There is a bit of an increase in horsepower but this will decrease the low-end power. It isn’t enough for you to ditch the Super 40 as soon as you put it on but it is something to be wary about.

The same can be said for the Super 44. Again, its primary function is noise regulation and you will perhaps get a slight horsepower performance boost. That being said, there isn’t a massively noticeable difference in performance with the Super 44. Much like the Flowmaster Super 40, its results are very much focused on noise levels.

Flowmaster 953047 Super 40 Series | Advance Auto Parts

The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology.

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Delta Flow Technology

We did touch on this above but it is worth expanding on in more detail. A common feature of the Flowmaster Super 40 and Super 44 is that they come with something called Delta Flow Technology.

This is designed with precision deflectors in the two chambers which are supposed to keep the sound mainly outside of your vehicle.

Without this design, the noise inside your vehicle would more than likely be a lot louder on both the Super 40 and the Super 44. It does work to an extent to keep the interior resonance down but it is still there.

It won’t completely drown out your stereo system and many people do actually like the inside noise as much as producing exterior decibels.

Installation

Upgrading any part of your engine and exhaust system can be a bit tricky when it comes to installation.

If you aren’t massively experienced with auto mechanics, you will probably be better taking either the Flowmaster Super 40 or Super 44 to someone who knows what they are doing.

Neither of these mufflers is incredibly difficult to install but if you are inexperienced it is a better idea to take it to a mechanic.

That being said, if you are determined to upgrade your muffler yourself, it doesn’t take any particular special tools to do it. If you have a tool kit at home you will more than likely have what you need to put on either the Super 40 or Super 44. Compared to some other mufflers – like the MagnaFlow muffler (also covered in our alternatives section further below) – both of these mufflers are quite straightforward to install. If you are in any doubts take it to someone who knows what they are doing.

Features unique to Flowmaster Super 40

The Flowmaster Super 40 is the previous version of the Super 44 and there are some features that are unique to this model. One is that it is made from aluminized steel – the Super 44 is made from stainless steel.

This gives it corrosion resistance and is designed to increase durability. Aluminized steel is a pretty common material for mufflers to be crafted from. Although, there has been a big shift to stainless steel construction as it does offer more durability and longevity.

The case is thicker on the Super 40 as well. Having a thicker case allows the sound to echo the noise that comes from a real muscle car. This can be detrimental to fitting it onto your vehicle especially if you don’t have much room to install a new muffler.

Features unique to Flowmaster Super 44

One of the main features that are unique to the Super 44 when compared to the Super 40 is that it is made from stainless steel.

This upgraded version of the original Super 40 will have more durability due to its construction. Stainless steel won’t rust so you will get added durability with the Super 44 model. This is backed up with a lifetime warranty as well which you won’t get on the Super 40.

Another unique feature is that the Super 44 muffler is that it is smaller and more compact. The size has been reduced from the Super 40 so that it can fit a wider variety of vehicles.

Comparing Flowmaster Super 40 and Super 44 Pricing

There really isn’t a big difference in the cost of the Super 40 and the Super 44 across the board.

This is a bit surprising given the Super 44 is designed as an upgrade. That being said, the original Super 40 still has a very loyal following especially for people who want a sound similar to the original Flowmaster 40.

The actual cost of both the Super 40 and the Super 44 isn’t huge and the sound enhancement is actually well worth the money.

Our Pick: Flowmaster Super 44 Series | Advance Auto Parts

Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the aggressive, deep sounding, high performing four inch case street muffler.

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We earn a commission if you click this link and make a purchase at no additional cost to you.

Pros and Cons

Flowmaster Super 40 Pros

  • Will enhance the sound on your vehicle from an OEM muffler
  • Reasonably priced and doesn’t cost a lot of money
  • Will provide a boost in horsepower
  • Has a fairly durable construction
  • Installation isn’t overly difficult

Flowmaster Super 40 Cons

  • Is made from aluminized steel and not stainless steel
  • A limited warranty is offered
  • Some inside noise even with Delta Flow Technology

Flowmaster Super 44 Pros

  • Deeper and more aggressive sound
  • Very durable and is made from stainless steel
  • Offers a lifetime warranty
  • More compact design than the Super 40
  • Fairly easy installation

Flowmaster Super 44 Cons

  • Has Delta Flow Technology but still some inside noise
  • Not as loud as some other mufflers

Are there any alternatives?

MagnaFlow Performance Muffler

The MagnaFlow Performance Muffler is an ideal part if you have a smaller vehicle.

Its design is well suited to cars such as Hyundais and Mitsubishis and it can fit onto a wide range of different vehicles.

The MagnaFlow Performance Muffler has a really nice aesthetic to it as well. It has a wide design and is also made from stainless steel so it has added durability too.

In terms of the sound, his muffler will greatly enhance the noise your car makes. It offers a deep rumbling sound which can help massively with creating more noise, especially on smaller vehicles.

It doesn’t offer great installation instructions. This is one downside especially if you are intending on fitting this part yourself. If you are taking it to a garage then no big deal but it is something to be wary of.

Overall we really quite like the MagnaFlow Performance Muffler – we included it on our list of best mufflers previously. It has a great design, nice sound, and is reasonably priced as well.

MagnaFlow Performance Exhaust | Advance Auto Parts

MagnaFlow performance exhaust has universal mufflers available for many applications in various sizes and configurations to fit your needs.

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Dynomax Super Turbo Muffler

The Dynomax Super Turbo Muffler is available for a range of different vehicles and it has a few great features which will help boost your sound levels.

Not only does it help to create a deep sound that will be louder than your stock muffler, but it has features to enhance performance too.

This includes large flow tubes which help to improve exhaust flow and reduce backpressure. There is also technology that helps to prevent turbulence. The fiberglass matting technology is there to reduce the likelihood of interior resonance when driving.

The Dynomax Super Turbo certainly isn’t the loudest Muffler you’ll find on the market but it doesn’t claim to be either. What it does is create a deep sound that will be louder than your OEM part. It isn’t going to annoy the neighbors but it will enhance the noise your vehicle makes.

You get a limited lifetime warranty with this muffler.

If you want a muffler that won’t break unwanted decibel levels but does perform very well, this is a decent alternative to both the Flowmaster Super 40 v Super 44.

Dynomax 17748 Super Turbo Muffler | Advance Auto Parts

Fiberglass matting absorbs unwanted interior resonance while maintaining a mellow performance tone.

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FAQs

Question: Will the Super 40 and Super 44 mufflers improve the sound of my vehicle?

Answer: Yes. If you still have a stock muffler installed, you should hear a noticeable difference in the sounds your vehicle makes. These aren’t the loudest mufflers available but they will improve the noise of your vehicle.

Question: Is it difficult to install the Flowmaster Super 40 and Super 44?

Answer: Not really. If you have some experience with mechanics you should be able to install the Super 40 or Super 44. If you aren’t sure how to do this it is best to take it to a mechanic.

Question: Will I get a performance boost with the Flowmaster Super 40 and Super 44?

Answer: You might do. Their main purpose is to imporove the sound that your vehicle makes, however, you may get a boost in horsepower. This can sometimes come at the expensve of low-end power.

Question: Do I get a warranty with the Flowmaster Super 40?

Answer: Yes. The Flowmaster Super 40 comes with a 3-year warranty.

Question: Do I get a warranty with the Flowmaster Super 44?

Answer: Yes. The Flowmaster Super 44 comes with a Limited Lifetime Warranty as it is made from stainless steel.

Question: Can I use these mufflers in the state of California?

Answer: California has stricter laws on custom mufflers. They are illegal if the noise being emitted from the muffler is over 95 decibels although on the spot fines have been stopped. They may also be illegal if they produce too many emissions. You should check your state laws first before making a purchase and equipping a new muffler to your vehicle.

Our Verdict:

Flowmaster Super 40 v Super 44 – go with the Super 44 if you want a deeper sound

Both of these mufflers from Flowmaster will improve the noise that your vehicle makes without causing too much attention. If you want a muffler that is going to enhance the sound of your vehicle but isn’t going to have everyone’s heads turning, either of these is ideal.

But we do need to choose one.

We are going to go with the Super 44 not least because we feel that it offers a deeper sound as well as some other features. The Super 40 is a classic and still offers a resonating sound like the original Flowmaster 40 muffler however we think that the Super 44 just edges it.

Even though the sound is a little deeper and more aggressive, there are other things we prefer with the Super 44 too.

Our Pick: Flowmaster Super 44 Series | Advance Auto Parts

Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the aggressive, deep sounding, high performing four inch case street muffler.

Check price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.
 

One is the stainless steel construction which should give it more longevity than the Super 40. You also get a limited lifetime warranty with the Super 44 too. It has a more compact design so should be able to fit into a variety of vehicles as well.

Installation of both of these mufflers is relatively straightforward if you know what you are doing. There isn’t anything massively difficult about getting it onto your vehicle although the Super 44 is a bit more compact.

The Super 44 also comes with the Delta Flow Technology although some internal resonance remains. The Super 44 isn’t the loudest muffler out there but doesn’t really claim to be either.

If you are in the market to improve the noise your vehicle makes and want a durable and modern muffler from a leading brand, it is difficult to go wrong with the Flowmaster Super 44.

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