Wow, who would have thought a device created purely for sound suppression would be designed purely for sound suppression.

This is how you block sound. It is doing exactly what it's meant to do.

A muffler muffles, who would have thought?

"This is completely about sound suppression " correct.

A muffler has one job; to muffle the sound of thousands of explosions per minute as long as it does this what more does it need to do.

I wish you would’ve cut the entire top off the muffler instead of in half cause I could’ve understood how it worked a lot better that way lol

This is how an effective muffler works.

I once built a sound proof room for recording music, and I setup up the cooling this way. I snaked the ducting around with some insulation so that it was quiet by the time it got inside the room. It’s certainly not the best for efficiency but it does work for sound isolation.

This guy straight pipes everything

Surprisingly the muffler doesn't obstruct much exhaust gas...the catalytic converter is the biggest obstruction

Let me cut the muffler in 1/2 and talk about all the parts you do not see. WOW!

Put a pressure gauge on it. If it reads above 1psi at full throttle I'd be amazed.

Gail Banks did a segment on exhaust efficiency and actually came up with definitive numbers..

I build mufflers that part is for sound reduction and there isn't any restrictions

That right there is the longest lasting muffler. Glass pack ones either burn out or simply clog up turning them into straight pipes and rendering them useless for the task.

Thanks to Percy Maxim, the "muffler was created" right. The same one who patent the "silencer" for gunshot suppression. So now you have to pay $200.°° for a tax stamp for one (USA) and wait for the approval. But if you drove a vehicle around without a muffler, you get a citation for it. 🤔🤔🤔 so taxed to have one then taxed if you don't have it.

Hmm, a muffler that ... um, Muffles? What a concept. What next? A sprinkler that sprinkles?

And now more people get a better understanding why aftermarket mufflers gain from 7- to as much as 36 horsepower. Proven in an engine masters episode.

That guy is a wizard with tig or mig welding up custom high dollar exhaust headers and complete exhaust systems. He's fantastic and IIRC that's all he does. I've been watching him on TV shows for prolly over 20+ years. He's the go-to guy when you're in a pinch to get a car to SEMA or a car show Etc.. I could learn a lot from him and it would be a great course to learn doing custom exhaust headers and exhaust systems..

In 1968 stock mufflers so restrictive the valve guides wore prematurely till we replaced the factory mufflers with smaller straight thru resonators (popper stoppers).

Lots of engineering goes into those details. What looks cheap and simple might be simply genius engineering.

Surprise!!! It’s designed to muffle the sound.

So what's a good quiet expensive muffler look like?

Congratulations! You figured out how a muffler works. They are designed to add some back pressure for the engine to run more efficiently. Just replace it already and send the customer on their way.

How dare that muffler be a muffler and not a megaphone? The absolute nerve....

A muffler is totally efficient at what it's designed to do. The clue is in the name; That's why it's not called a straight pipe.

Isn't he with Bora exhaust? He's been on many shows like Overhaulin. He's right though, and they fill with moisture.

A "muffler" which is nothing but sound suppression. OK

Hence the name muffler.

This guy could cut a flashlight open and be like, oh, oh this is bullshit. Somebody come look at this, grab the video camera

That muffler isn't cheap. Its quiet.

its like they just learned how mufflers work!

Thank you so much. This was great to learn about. Makes me thing I could design my own.

The enginner who spent hours designing this muffler to be as efficient as possible: 👁️👄👁️

Cars/trucks around here are so damn loud, It's like being at a NHRA event. I LIKE that "MUFFLE-R"- shuts them the hell up.

Did cutting it open actually accomplish anything?

I work for a company that makes OEM mufflers for Honda and Suzuki.. OEM mufflers are designed for noise suppression, and there is very little restricted airflow.

It's actually incredibly efficient.

Very enlightening.

Yep. That IS the most effective and efficient way to be a Muffler Confirmed 👍

Seems very efficient in damping the noise... Which is what it was engineered for...

The easiest selling point for flowmasters on my old truck was them showing me the pipe that went straight through with zero restrictions. That had me at “look”.

Learn something new every day!

Back in the day there was no aftermarket mufflers except glass packs so hot rodders in the know bought Corvair Turbo mufflers, a muffler that had even less back pressure was the Hemi Muffler but it cost considerably more than the Corvair Muffler. So the first aftermarket Hi Perf Mufflers made were copies of Corvair Turbo mufflers. Why didn't the "Expert" mention that?

This is actually a low restrictieve muffler with resonance chaimbers instead of a cheaper version filled with steel wool or fibre glass.

My wife and I bought a brand new KIA cerato last year, first brand new car in our life. We had it put on the dyno and it produced way less than the manufacturer said it would so we changed a few things. After a new tune and new exaust it produces 26kw more than manufacturers said it would. Needless to say we are now very happy with our nw car.

Glasspaks baby

resistance and back pressure are good if you drive on the street, its what makes your car feel fast and powerful. freeflow is for full throttle racing only.

What you have is basically a suppressor, that is exactly how a suppressor for a gun works by disrupting the gas flow through expansion in to baffles. The question is...where's the ATF? lol jokes aside, this is why you get so much performance out of a straight pipe.

What about all the water collection from condensation which, depending on the engine, may add another element to the restriction and/or suppression, provided there's no drain in the design of course.

There's 3 ways to quiet a car exhaust. You can do it throught restriction, sound wave reflection, and sound wave absorption. The muffler shown uses a small amount of sound wave reflection along with a lot of restriction.

I know the problem, it ain't got no gas in it.

Didn't the guy who invented the muffler also make the suppressor for guns?

And this is why I straight piped my car with some fox exhaust and now its awesome . To hell with restrictions.

how else is it going to get rid of the sound?

The fact that it’s called a muffler said it all. It’s efficient in su pressing sound.

These people are surprised that a silencer / muffler is designed to silence / muffle the sounds of the exhaust. I bet it's going to blow their minds when they discover that water is wet, fire is hot, outside is big etc...

Funny how a muffler is designed to muffle sound! Who would have thought that the purpose of a muffler would be to muffle sound! Incredible! *mind blown !!!

See Timmy, and this is why aftermarket mufflers are so popular.

Although I agree with the comments that it's built to suppress sound. It's also not supposed to rob you of 40 horsepower in the process. You can make an engine quieter without killing power. It just costs more to do it

So, you let the engine breath, it will have better fuel economy?! Weird!

I trust this Dude… That JNC Jumpbox is a decent piece of equipment. I think my Guys have only broken 2 of those?

He did say it was completely about sound suppression. It causes back pressure (restrictive) and that robs horsepower. It was not designed to take the engine efficiency into account.

This is normal. That and engines are designed with a certain ammoint of back pressure anyway. Cheap or not, its supposed to just muffle sound….hence MUFFLER.

Its spose to be quiet and reduce power . Thx the govt for such strict guidelines

Back pressure reducing power!

You're not wrong but it's supposed to be that way. The engineers who design engines design them to work better with that restriction than it would without it.

When you have 100 words left to go on your thousand word essay:

Flow Masters are the best.

Is there a quieter design for car a muffler?

An expensive muffler is exactly the same but with a high price tag.

I am waiting for his first straight piped EV.

The efficiency of the exhaust is relative to the efficiency of the intake. In theory, this exhaust could be more efficient than the intake from port to air filter, carburetor and intake manifold.

Partially why I swapped to a cherry bomb muffler believe it or not isn’t super loud with an m80 cause it has a better flow oriented design

Sometimes I wonder about people who have time and money. Wish I had the second one cause all I gots is time 😂😂😂

Wouldn't think my straight 3" muffler does anything but you take that thing off and woo boy

Gotta love my 6" straight pipe! 😂

I'm not falling for the 🍌in the tailpipe trick again.

Those mufflers are the biggest power killers on the planet. I reckon you will not only increase HP, but DEFINETLY driveability if you change to a free flowing, induction tuned muffler.

You know what would be even more restrictive and power robbing? A straight piece of pipe. Yep, straight pipe exhausts with no mufflers have more back pressure. Those chambers allow the hot high pressure pulses of gas to expand and relieve pressure. Then, some of the high pressure peaks slow down and fill in the low pressure areas between the exhaust pulses. If you do that enough, what comes out of the end of the tail pipe sounds less like a pop, pop, pop, and more like a whoosh of fast moving air.

The point of a mubbler as you said is to block sound by being bad at giving air flow out

That kind of muffler work since the beginning of car running on the road

Do your telling me….. Say what again? 😂

Three chamber muffler, w/c is very. Effective in. Sound suppression. Bec. Sound Is. Trap, delayed traveling inside the chambers that makes it less noise output.

No the comments are criticising what the man is saying yes a muffler is suppose to suppress noise but it is suppose to release the gases quickly also in a way so that the car gets good mileage this is back logging

People fit bigger pipes but double the diameter gives 16 x the gas flow. 2” to 2.5” still gives a huge flow increase.

I thought the same thing. Open the top of the muffler for better viewing and visual explanation.

Yeah, and it usually does a fine job. A fine job indeed. I took the rear silencer / muffler off my 74 V8, left just the resonator, and it was unbearable. Welded up a bit of exhaust tubing and put a cherry bomb glass pack on the end, much better. And that my dear friends, was with a Buick / Rover 215ci V8, image a bigger engine. Now I'm not saying you shouldn't do it, if you fancy straight piping your Buick 455 or Hemi 440, go ahead. But as someone who drove their car through London 32 miles every day to and from work, your ears will get tired of it. Glass packs are great, because at idle they're quiet, at cruise they're quiet, the noise only comes when you put your foot down, or when the glass packing has been burnt away. 😂

So...they designed it with Back Pressure? On purpose?

This is about efficiency and the more an engine can run efficient, the better gas mileage,less pollution,more power, and it's proven, you can have sound suppression without killing efficiency.

So it does exactly what it's supposed to do? WOW

Silence by strangulation not absorption,which is the most effective way but a little more expensive to produce

I switched an old Mustang from glass packs to mufflers and I found it more comfortable without all of that noise to daily drive.

That muffler is holding his Kia from it's true potential.

How did you think a muffler works?

They are trying to make some point about this being a cheap muffler. It would be nice if they showed the differences in an expensive muffler.

At 3500 rpm there isn't a noticeable power lost between muffler and straight pipe.

Not only does it muffle sound - it provides BACK PRESSURE, and is part of the design of the engine. Ask anyone who has had a hole in their muffler how much their fuel usage went up. If you are going to mock something, at least TRY understand what it does first.

Wow its designed to work... how amazing 😂😂

That's why I like straight pipes lots of noise 😅