Each have their own advantages. From a power perspective, there isn't necessarily a dominating engine. I need to make a video discussing the differences sometime. For the time being, watching my "F1 vs NASCAR" video may help. Larger engine, longer stroke, typically means more torque. Smaller stroke and higher bore tends to favor higher revs, and thus high power. The layout affects packaging, size, balance, and CG.
Probably can go with your intuition on this. Sound is energy after all. The turbo will likely reduce noise the most, but have the most restriction, vs the straight through with the least restriction, but likely the loudest.
@@CaptainCocaine sadly most loud cars have like 140 HP when they were new a decade or 2 ago. Also often sound like a cat coughing it's guts up to everyone but the driver.
Yes, they are connected, but the perforations are small and the easiest path out is not through the sound deadening material, rather through the open piping. And as far as the "above one another" comment I may have just been referring to the bottom where it looks like the pipes intersect but really don't, it's just a 2D image.
Very interesting. Many years ago (mid 80's), I put turbo mufflers on my hot rod Camaro. It made an awesome sound and with the tall cams, high rise intake, headers and Holley 650, it also performed well too. The funny thing is that I thought the turbo mufflers were better performing. I didn't want the loud glass packs (had them on another car). The turbos did make quite a bit of noise, but I never got a ticket for noise. Thanks for the excellent explanation.
It's just the engine trying to warm up. Once the oil is at an ideal temperature the engine runs the most efficiently, so it will keep the idle a little higher at start in order to bring the temperature up.
What is the difference between a resonator and a muffler? On another note, I am almost half way through all your videos and they are awesome. I really like how you use layman's terms and explain things in a simple fashion. Keep up the good work!
I don't really know how you could tell without actually opening it. From the outside many different types will look similar. That said, it's likely the turbo type as these are fairly common.
That depends on what you consider "optimal sound." If you mean loudest : you don't want a muffler or if anything a straight-through. If you are searching for a specific sound - you'd have to work with an exhaust systems company to create an exhaust system that produces the sound you are looking for (sound comes from the engine - all the exhaust does is change the frequency and amplitude of the engine sound so "optimal sound" may require a different engine or car).
The straight-through actually behaves as a "multi-resonator" type silencer. Basically it combines the effects of a dissipative silencer (from the insulating material) with a series of resonator chambers which have no physical walls separating adjacent ones. This is achieved through the perforations and the back surface behind the dissipative material.
It certainly shouldn't have a negative effect on power. Back pressure is not something which is necessary, nor wanted (check out my video "increase horsepower exhaust." That said, your car will definitely become noisy.
when you start a cold engine (on modern vehicles) you have what's called a IAC or Idle Air Control valve. You also have a Cold fast idle control valve, now they can have different designs, but the function is the same. Engine's work best when they reach about 150-190 degree's F. Same with the exhaust system, your cat works best when it's hot along with your O2 sensors. when your computer sees that engine temp has risen and your thermastat is starting to open up it will reduce the idle speed.
If the stock muffler is the bottleneck of the exhaust system, and is restrictive, then yes. But this probably would be rare - likely you'd need more than just a muffler.
So a straight threw converts sound energy into heat right. Does that mean it gets even louder when it gets to the same temperature as the exhaust gasses? Or is the air under the car enough to cool down the straight threw muffler? Or does it just not make a difference?
Julio Campuzano acc to me there might be a coolant near it. but i will try to figure it out. in more detail and let u knw till then there is a coolant near it. btw Good Que.
Julio Campuzano: *through*, it's even on the board, nobody's throwing anything. The heat either radiates to the outside (which is indeed cooled by the air passing by), or gets radiated back to the exhaust gasses flowing *through*. Ritik Jain *No, just no*, have you even ever seen a muffler, or a car for that matter, or English?
Thank you SO MUCH for this video. i didnt know ANYTHING about the muffler system i had on my care but people kept asking me about it. im just a tegular guy that like a fast car, im not sure about all the other stuff i just like the way my Mustang look & thats it. Thanx alot
Let's see if I got this right.. The turbo muffler have more restriction which reduces the performance a bit since the exhaust won't exit as fast and therefore will reduce the rate of flow that the exhaust is exiting, right? But in a low performance car it won't make as much of a difference since it doesn't got enough power in the first place to push out the exhaust that fast?
What is or what are the most common types of mufflers used by most of the car manufacturers? Also, do aftermarket companies prefer one type from others? Or is it simply based on the customer's need, which is quietness vs performance? Thank you
thanks a lot and your video was easy to understand i prefer straight pip cause more hp and aggressive sound but the only problem is so much annoying Specially in highways and its illegal . last thing i wanna say is can you explain how vvt injection work in most of new engines for example toyota engines
This is exactly the topic I would like some answers about because I'm trying to find out the difference between swapping out just my mufflers as opposed to doing a full exhaust. Which is more beneficial? A lot of guys do one,or the other. I'm not a racer,but I'm just trying to give my car some mild power and a better sound. Any suggestions?
It really just depends where the restriction is. If the muffler is highly restrictive, then you can benefit by swapping out. I'd just try and find some data to go along with the decision you end up making. I'd say the majority of the time a muffler alone will do very little, if anything.
2slick35 I would have went with a brand new stainless catback also. Not just for lesser restrictions and a new engine tone but for exhaust reliability.
Are there three types of mufflers- Reactive, Dissipative and Absorptive?? I have read that sometimes combination of them is built in single muffler, right? I have read that Reactive mufflers are either expansion chambers or extended tube resonators or helmholtz resonator or their combination, Dissipative mufflers work by passing the gas flow through perforated sections, dispersing then recombining the flow. In absorptive mufflers, there is sound absorbing material.???
If you're concerned about loosing needed back-pressure by removing your turbo muffler, don't. In MOST stock cars, the exhaust manifold creates enough "back-pressure" on its own. That's not counting the cats and the stock exhaust piping. If you're wondering why the sound waves cancel each other instead of constructing, it's because the sound pressure wave has nowhere to expand outside of the muffler before it hits another sound wave, and a delayed reflection of it. All these pressure waves bouncing into each other canceling each other.
Good day sir. I have watched a few of your video's and find them to be very intresting and educational. But I have a questing. What would happen of you converted ALL of your exhaust sysem with one masively long straight-through muffler? Would it be super quite or just uttely useless?
Hey man ! I got a doubt.. In the turbo muffler, you said the exhaust gases go round and round in the chamber before exiting through the tailpipe. Are the perforated pipes connected? Otherwise the exhaust gas. with its velocity would go straight outta the tailpipe. Also, I did not get the part about the perforated pipes being one above the other. That said, your videos are pure AMAZING
Many decades ago a freer flowing exhaust would help both performance and fuel economy. Are exhaust systems better engineered now? An example would be my 4 cylinder car, with 2.5" Dia pipes, and a muffler measuring 10" Dia x 36 "Long. I'm thinking that should be low restriction.
its perfectly fine, you'll just have a very loud car. and removing the muffler doesn't do anything to the environment, unless you remove the catalytic converter
What would you look for in exhaust if you were wanting to keep the stock tone but just have it amplified without making it raspy or changing the sound too much?
when the muffler pipe or manifold got leak it affect so badly on engine performane, fuel consumption, and engine heat, from an experience with my car. i read about it, found that it engineered with engine to help clean the engine chamber from the burned gases though a caculated successive waves. So any leak will disturbe the system. Therfore, changing it with another unmatched one should affect the performance too, i think.
it seems like the turbo would.. I wonder if it gets its name because turbos are louder or something. he said the other 2 are better for performance so turbo must be better for sound since its more restrictive
Hello mate, just a quick question. So basically, I understand mufflers does nothing but cancel noise from exhaust system. No added horse power, no other performance benefit ? Also, do you advise anyone to install a muffler after having installed a performance exhaust system. Thank you for your time and effort.
Hello sir, Talking about conventional engines, why don't we use governor like devices to control A/F in gasoline engines Or vice versa. I m looking for your answer. Thanks AasifWali
When looking at a straight through type muffler, like a glasspack or a magnaflow, is it the case length that determines how loud it'll be? For example if I take two mufflers with 2.25 inlet/outlet, and one has a 14" case while the other's is 20", the longer one should be noticeable quieter, correct?
Great Videos man! Thanks for your efforts!! one quick question, shouldn't the muffler you should consider when you want to gain optimal sound from your car ?? Thanks
hey first things first, awesome job, you are doing, but here i have a question, with the perforated pipes or channels how come only the sound waves get through and not the exhaust gases? hope to see the answer soon!
+nikhil gogia outside of perforated tube is packed with noise absorbing materials and hence there is no much space for exhaust gas to get into. But sound is a form of energy which will be get absorbed into it
hi... mighthy car mods have a video on gaining power by stuffing a potato at the end of a straight pipe muffler. can u do a video explaination on that ? thankz...
thanks good explanation... I have irrelevant question... when u start the car when its cold it runs with around 1000 rpm then it get decreases to around 600 rpm I wonder why is that ??
Hi I have a question, im completly clueless about this, Im interested in fitting a performance exhaust, the mechanic i spoke to told me that you cant really increase the sound of the exhaust because its a diesel. But He said he would remove the back box and fit on a cat back exhaust. Would this have any effect on the cars sound and performance? Thank you
I got a 2007 Civic 1.8 custom catback 2.25 piping with 2.25 vibrant resonator but my muffler is a 2.5 Skunk2 muffler (absorbtion type) . If I replace my muffler to a reflection type Magnaflow, will it quiet down my cruising speed especially city driving?
Hello! I have a question and I always wanted to get an answer for it. If I got a Turbocharged car, 1.2 TSI and I disconnect the exhaust from the middle resonator and I'm running the car only with the short pipe (manifold, cat and pipe Until the middle of the car) is there something bad that can happen? Thank you!
I'd like to delete the muffler from my car, but I cannot find a definite answer on how that would affect performance. Will the loss in back pressure result in loss of low end torque or a powerband shift?
Each have their own advantages. From a power perspective, there isn't necessarily a dominating engine. I need to make a video discussing the differences sometime. For the time being, watching my "F1 vs NASCAR" video may help. Larger engine, longer stroke, typically means more torque. Smaller stroke and higher bore tends to favor higher revs, and thus high power. The layout affects packaging, size, balance, and CG.
Probably can go with your intuition on this. Sound is energy after all. The turbo will likely reduce noise the most, but have the most restriction, vs the straight through with the least restriction, but likely the loudest.
No muffler=weight reduction bro
+5.0 RUMBLEsquat also more HP and louder. Bitches love loud cars with hella HP.
@@CaptainCocaine hahaha love this
@@CaptainCocaine sadly most loud cars have like 140 HP when they were new a decade or 2 ago. Also often sound like a cat coughing it's guts up to everyone but the driver.
@@CaptainCocaine Women have never liked loud vehicles, loud vehicles are made fun of
Yes, they are connected, but the perforations are small and the easiest path out is not through the sound deadening material, rather through the open piping. And as far as the "above one another" comment I may have just been referring to the bottom where it looks like the pipes intersect but really don't, it's just a 2D image.
What is best than spending a couple of minutes learning something new? Petrolhead's best channel!
The pipes can be made of steel/metal. The insulation material can be many different types of material, a fiberglass or sound deadening foam, etc.
can you please make a video about back pressure or how exhausts can increase mpg
Resonators are typically for specific frequencies, where as mufflers are used to cancel out as much noise as possible.
Very cool explanation. He's a good teacher!
i know it's kinda randomly asking but do anyone know of a good site to stream newly released tv shows online?
@Dayton Arjun Flixportal :D
@Adonis Royal thank you, signed up and it seems like they got a lot of movies there :) I appreciate it !
@Dayton Arjun You are welcome :)
Very interesting. Many years ago (mid 80's), I put turbo mufflers on my hot rod Camaro. It made an awesome sound and with the tall cams, high rise intake, headers and Holley 650, it also performed well too. The funny thing is that I thought the turbo mufflers were better performing. I didn't want the loud glass packs (had them on another car). The turbos did make quite a bit of noise, but I never got a ticket for noise.
Thanks for the excellent explanation.
Ha, the magic's under the hood, not all in the muffler.
I believe the turbo type is the most common. Aftermarket ranges through all three, as you said based on what characteristics they want.
Can you do a video on he pros and cons of a muffler delete and running just a cats?
It's just the engine trying to warm up. Once the oil is at an ideal temperature the engine runs the most efficiently, so it will keep the idle a little higher at start in order to bring the temperature up.
You could really see them on anything, I think the "turbo" style is one of the more common types for most production cars.
It would likely cancel out more noise than a shorter one, but that's a good amount of weight and piping.
What is the difference between a resonator and a muffler?
On another note, I am almost half way through all your videos and they are awesome. I really like how you use layman's terms and explain things in a simple fashion. Keep up the good work!
I don't really know how you could tell without actually opening it. From the outside many different types will look similar. That said, it's likely the turbo type as these are fairly common.
That depends on what you consider "optimal sound." If you mean loudest : you don't want a muffler or if anything a straight-through. If you are searching for a specific sound - you'd have to work with an exhaust systems company to create an exhaust system that produces the sound you are looking for (sound comes from the engine - all the exhaust does is change the frequency and amplitude of the engine sound so "optimal sound" may require a different engine or car).
They are equal and opposite, rather than equal and in-line. They are basically mirrored version of themselves, rather than working together.
The straight-through actually behaves as a "multi-resonator" type silencer. Basically it combines the effects of a dissipative silencer (from the insulating material) with a series of resonator chambers which have no physical walls separating adjacent ones. This is achieved through the perforations and the back surface behind the dissipative material.
could you say that again in English?
all them words is English breh
Content is great and informative, problem is production quality. Particularly the sound man
It certainly shouldn't have a negative effect on power. Back pressure is not something which is necessary, nor wanted (check out my video "increase horsepower exhaust." That said, your car will definitely become noisy.
when you start a cold engine (on modern vehicles) you have what's called a IAC or Idle Air Control valve. You also have a Cold fast idle control valve, now they can have different designs, but the function is the same. Engine's work best when they reach about 150-190 degree's F. Same with the exhaust system, your cat works best when it's hot along with your O2 sensors. when your computer sees that engine temp has risen and your thermastat is starting to open up it will reduce the idle speed.
Yes indeed, but sound energy can dissipate by transforming to heat energy.
Probably would have been a nice touch, good call.
If the stock muffler is the bottleneck of the exhaust system, and is restrictive, then yes. But this probably would be rare - likely you'd need more than just a muffler.
you seem to know what your talking about, you sir just got a new subscriber
Maybe you could explain how a resonator works. Love the show !
Can you make a video about the diagnosis by scanning and hoe does ecu work ?
So a straight threw converts sound energy into heat right. Does that mean it gets even louder when it gets to the same temperature as the exhaust gasses? Or is the air under the car enough to cool down the straight threw muffler? Or does it just not make a difference?
Good question, I would like to know the answer as well.
Doesn't matter because only the sound energy is converted into heat after striking the glass fiber no reversibility possible
Julio Campuzano acc to me there might be a coolant near it. but i will try to figure it out. in more detail and let u knw till then there is a coolant near it. btw Good Que.
Julio Campuzano: *through*, it's even on the board, nobody's throwing anything.
The heat either radiates to the outside (which is indeed cooled by the air passing by), or gets radiated back to the exhaust gasses flowing *through*.
Ritik Jain *No, just no*, have you even ever seen a muffler, or a car for that matter, or English?
Does changing rear muffler affect car engine, the way engine work...some peole say that after that car spend more fuel and car engine have problems
so this reduces the sound, just like the resonator. finally getting better at this thanks to you lol
Thank you SO MUCH for this video. i didnt know ANYTHING about the muffler system i had on my care but people kept asking me about it. im just a tegular guy that like a fast car, im not sure about all the other stuff i just like the way my Mustang look & thats it. Thanx alot
Dude you are so helpful for learning about cars
Let's see if I got this right.. The turbo muffler have more restriction which reduces the performance a bit since the exhaust won't exit as fast and therefore will reduce the rate of flow that the exhaust is exiting, right? But in a low performance car it won't make as much of a difference since it doesn't got enough power in the first place to push out the exhaust that fast?
The longer one should be quieter, assuming all else is equal, yes. How much, I'm not sure.
Can you do Vedio about which mufflers are used in new vehicles
...
What is or what are the most common types of mufflers used by most of the car manufacturers?
Also, do aftermarket companies prefer one type from others?
Or is it simply based on the customer's need, which is quietness vs performance?
Thank you
thanks a lot and your video was easy to understand i prefer straight pip cause more hp and aggressive sound but the only problem is so much annoying Specially in highways and its illegal .
last thing i wanna say is can you explain how vvt injection work in most of new engines for example toyota engines
Awesome! Wish I had the Type R.
This is exactly the topic I would like some answers about because I'm trying to find out the difference between swapping out just my mufflers as opposed to doing a full exhaust. Which is more beneficial? A lot of guys do one,or the other. I'm not a racer,but I'm just trying to give my car some mild power and a better sound. Any suggestions?
It really just depends where the restriction is. If the muffler is highly restrictive, then you can benefit by swapping out. I'd just try and find some data to go along with the decision you end up making. I'd say the majority of the time a muffler alone will do very little, if anything.
Engineering Explained
Thanks. Looks like a full cat-back is the way to go. Or a good start.
2slick35 I would have went with a brand new stainless catback also. Not just for lesser restrictions and a new engine tone but for exhaust reliability.
Engineering Explained Does a muffler delete decrease low end torque?
Jonathan Fuentes No, it only decreases the IQ of your social network.
Good idea for a future video!
Are there three types of mufflers- Reactive, Dissipative and Absorptive?? I have read that sometimes combination of them is built in single muffler, right? I have read that Reactive mufflers are either expansion chambers or extended tube resonators or helmholtz resonator or their combination, Dissipative mufflers work by passing the gas flow through perforated sections, dispersing then recombining the flow. In absorptive mufflers, there is sound absorbing material.???
Do a video on winter/summer tires (the rubber composition and tread patterns)!
If you're concerned about loosing needed back-pressure by removing your turbo muffler, don't. In MOST stock cars, the exhaust manifold creates enough "back-pressure" on its own. That's not counting the cats and the stock exhaust piping.
If you're wondering why the sound waves cancel each other instead of constructing, it's because the sound pressure wave has nowhere to expand outside of the muffler before it hits another sound wave, and a delayed reflection of it. All these pressure waves bouncing into each other canceling each other.
Spaceman Rick There's no such thing as "needed back-pressure" in 4-stroke engines.
Candisa, I agree.
Good day sir.
I have watched a few of your video's and find them to be very intresting and educational.
But I have a questing.
What would happen of you converted ALL of your exhaust sysem with one masively long straight-through muffler?
Would it be super quite or just uttely useless?
Can you make a video on 2 stroke pipes. How they effect hp.
Hey man ! I got a doubt..
In the turbo muffler, you said the exhaust gases go round and round in the chamber before exiting through the tailpipe.
Are the perforated pipes connected? Otherwise the exhaust gas. with its velocity would go straight outta the tailpipe.
Also, I did not get the part about the perforated pipes being one above the other.
That said, your videos are pure AMAZING
is there any damage that i can do to my car if i remove the muffler and use straight pipes with resonated tips ?
What do u mean by resonated tips? Wont the resonator do its job?
Straight thru.
nice video...Could you please share your knowledge on what are those types of noises in car where noise reduction filters are used?
Many decades ago a freer flowing exhaust would help both performance and fuel economy. Are exhaust systems better engineered now? An example would be my 4 cylinder car, with 2.5" Dia pipes, and a muffler measuring 10" Dia x 36 "Long. I'm thinking that should be low restriction.
Nice explanation dude!i just want to ask that many peoples remove mufflers to get big noise is that good ?
No that is very bad for the environment.
its perfectly fine, you'll just have a very loud car. and removing the muffler doesn't do anything to the environment, unless you remove the catalytic converter
@@princiehurty If you remove muffler in my country you cant legally drive that car.
I need a chambered, straight-through, turbo muffler.
What would you look for in exhaust if you were wanting to keep the stock tone but just have it amplified without making it raspy or changing the sound too much?
same muffler but smaller
Some turbo style mufflers don't use a packing....although alot of em do.
Does changing rear muffler affect car engine, the way engine work...some peole say that after that car spend more fuel and car engine have problems
when the muffler pipe or manifold got leak it affect so badly on engine performane, fuel consumption, and engine heat, from an experience with my car. i read about it, found that it engineered with engine to help clean the engine chamber from the burned gases though a caculated successive waves. So any leak will disturbe the system. Therfore, changing it with another unmatched one should affect the performance too, i think.
I know, I know, I need to get this done!
which one is the best amongst the three? which reduces noise to greater extent?
it seems like the turbo would.. I wonder if it gets its name because turbos are louder or something. he said the other 2 are better for performance so turbo must be better for sound since its more restrictive
Excellent, thanks!
Hello mate, just a quick question. So basically, I understand mufflers does nothing but cancel noise from exhaust system. No added horse power, no other performance benefit ?
Also, do you advise anyone to install a muffler after having installed a performance exhaust system.
Thank you for your time and effort.
yapnop2 For keeping the noise level of your vehicle tame, yes I'd recommend a muffler.
+yapnop2 , ALSO, THATS WHY ITS CALLED A MUFFLER, IT MUFFLES THE MOTOR
Hello sir,
Talking about conventional engines, why don't we use governor like devices to control A/F in gasoline engines Or vice versa.
I m looking for your answer.
Thanks
AasifWali
When looking at a straight through type muffler, like a glasspack or a magnaflow, is it the case length that determines how loud it'll be? For example if I take two mufflers with 2.25 inlet/outlet, and one has a 14" case while the other's is 20", the longer one should be noticeable quieter, correct?
Great Videos man! Thanks for your efforts!! one quick question, shouldn't the muffler you should consider when you want to gain optimal sound from your car ??
Thanks
When you were in college, was your program dedicated to cars or mechanical engineering in general? thanks.
Integra ftw!! I purchased my second one recently
Do a video on straight pipe systems
99 Integra GS
How does the novitec exhaust work and how are they made to be high pitched?
very cool design ideas right here - thanks for the insight!
I've learned more than this man than my mechanics teacher
Will swapping out an old stock muffler for a new aftermarket one improve performance?
I have straight mufflers on my crown vic and it sounds GRRRRRRRREAT!
dude... YOUțRE AWESOME!!! thank you!
Great job on the explanation I wasn’t sure since when I bought my car it came without the muffler 🤨it’s loud obviously
hey first things first, awesome job, you are doing, but here i have a question, with the perforated pipes or channels how come only the sound waves get through and not the exhaust gases?
hope to see the answer soon!
+nikhil gogia outside of perforated tube is packed with noise absorbing materials and hence there is no much space for exhaust gas to get into. But sound is a form of energy which will be get absorbed into it
How about aftermarket exhaust and exhaust silencers test. wondering if there is a performance lose with exhaust silencers.
thanks, now I understand why my smal free flow damper is damping the noice so much :)
As in automatic? No reason, other than it's likely illegal to not have a cat.
Are there any new type of mufflers other than these?And also if you could help with dimensions of muffler, should it be based on hp of engine?
You should do a video on aerodynamics
Hey I'm wondering if you know mechanical stuff on motorcycles as well because it would be awesome if you could do videos on them as well. :D
hi... mighthy car mods have a video on gaining power by stuffing a potato at the end of a straight pipe muffler. can u do a video explaination on that ? thankz...
Would like to know which muffler is the best for low noise vs higher noise but less restrictions for more power?-
thanks good explanation... I have irrelevant question... when u start the car when its cold it runs with around 1000 rpm then it get decreases to around 600 rpm I wonder why is that ??
Hi
I have a question, im completly clueless about this,
Im interested in fitting a performance exhaust, the mechanic i spoke to told me that you cant really increase the sound of the exhaust because its a diesel.
But He said he would remove the back box and fit on a cat back exhaust.
Would this have any effect on the cars sound and performance?
Thank you
I got a 2007 Civic 1.8 custom catback 2.25 piping with 2.25 vibrant resonator but my muffler is a 2.5 Skunk2 muffler (absorbtion type) . If I replace my muffler to a reflection type Magnaflow, will it quiet down my cruising speed especially city driving?
Hello! I have a question and I always wanted to get an answer for it. If I got a Turbocharged car, 1.2 TSI and I disconnect the exhaust from the middle resonator and I'm running the car only with the short pipe (manifold, cat and pipe Until the middle of the car) is there something bad that can happen? Thank you!
I have a few, check out my Formula 1 playlist.
Whats your take on strait pipe exhaust.
Is straight through muffler loud?
Yes
I'd like to delete the muffler from my car, but I cannot find a definite answer on how that would affect performance. Will the loss in back pressure result in loss of low end torque or a powerband shift?
Hello sir,
A quick question, about exhaust and noise : How to kill / lower noise from an Exhaust ?
with a muffler
my misstake, I'm talking about an OEM Exhaust, on a 2010 Mustang for example wich already have one.
Can you Email me ? maybe more simple ?
Can an O2 sensor be cleaned from carbon contamination without damaging the permeable membrane?
Can you do a beginners guide for car mechanics
can we reduce noise by using reflecting or absorbing material in muffler pipes ?
what car you have got ?
P.S nice video :)
out of the above three which type of muffler has the least back pressure??
please revert back soon
hey what are the perforated pipes made of? whats making the sound less?
Hi. There were rumors saying that an auto car isn't suitable to have straight flow exhaust pipe. Is it true and why?