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#1

Posted 15 April 2019 - 06:27 PM

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Hi guys,

 

I have been searching for threads regarding modding exhausts but couldnt find the info i needed. As such, started this new thread here.

 

My bro-in-law bought a Perodua Myvi (previous gen) through a parallel importer some time back and is looking to zhng the exhaust to sound more bassy (something along the lines of the Imprezas in the early 2000s) but couldnt find any LTA approved exhausts after asking around.

 

So we went to Skyrex Exhausts recently. They mentioned they can customize the exhausts to fit the car. The actual words they used were "use stock exhausts operate". They didnt elaborate much as we visited them close to their closing timing.

 

Can anyone here provide some wisdom on what exactly do they mean and if its street legal?

 

 

{PS: Sorry for asking such a noob question, am new to this whole car mod-ing game and thank you in advance!}


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In life, you make choices and you don't look back because the choices made were based on the circumstances then.

#2

Posted 15 April 2019 - 06:45 PM

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Don't waste time. Change to a proper exhaust.

That again it's a Myvi, all the more don't waste time and money.

Take the money and treat the family to a good meal.
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#3

Posted 15 April 2019 - 07:46 PM

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Don't waste time. Change to a proper exhaust.

That again it's a Myvi, all the more don't waste time and money.

Take the money and treat the family to a good meal.

Haha its not that bad right? I have seen Myvis speed down mountain roads in M'sia faster than Porsches and Audis machiam Initial D.

Putting the topic of Myvi aside and for the sake of knowledge, care to share what is operating the exhausts?

Edited by _Sam_, 15 April 2019 - 07:50 PM.

In life, you make choices and you don't look back because the choices made were based on the circumstances then.

#4

Posted 15 April 2019 - 08:17 PM

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If you have been searching the threads in MCF, you would have noticed there are a couple of old threads on exhaust modification, including whether such modifications are legal or not.

http://www.mycarforu...ch-shop-better/

https://www.mycarfor...exhaust-modify/

https://www.mycarfor...post_id_2101864

Hope this helps, but quite frankly...Don’t waste time.
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#5

Posted 15 April 2019 - 08:30 PM

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If you have been searching the threads in MCF, you would have noticed there are a couple of old threads on exhaust modification, including whether such modifications are legal or not.

http://www.mycarforu...ch-shop-better/

https://www.mycarfor...exhaust-modify/

https://www.mycarfor...post_id_2101864

Hope this helps, but quite frankly...Donât waste time.

Great! Thanks for the help!

Well, I will leave it up to my bro-in-law to decide if he still wants to zhng. Personally, i drive a bezza so i dont even bother haha
In life, you make choices and you don't look back because the choices made were based on the circumstances then.

#6

Posted 15 April 2019 - 08:59 PM

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Haha its not that bad right? I have seen Myvis speed down mountain roads in M'sia faster than Porsches and Audis machiam Initial D.

Putting the topic of Myvi aside and for the sake of knowledge, care to share what is operating the exhausts?

 

Its not about the size of the exhaust but the size of the testicles in that case. 

 

Operating the exhaust means to remove the internal baffles and piping in the (mistaken) hope that it would somehow turn your cut-rate economy hatch into an exotic-car beater. 

 

All it does it remove your low end torque and make your car louder. 


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The gene pool could use a bit of Clorox at times

#7

Posted 15 April 2019 - 09:04 PM

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Its not about the size of the exhaust but the size of the testicles in that case.

Operating the exhaust means to remove the internal baffles and piping in the (mistaken) hope that it would somehow turn your cut-rate economy hatch into an exotic-car beater.

All it does it remove your low end torque and make your car louder.

Ahh no wonder they said operate the stock exhausts because it will look no diff from the original.

Then again, confirm cannot pass inspection. The noise and the hollow muffler (if the inspector decides to knock) is a dead giveaway.

Thanks for the explanation!
In life, you make choices and you don't look back because the choices made were based on the circumstances then.

#8

Posted 15 April 2019 - 10:17 PM

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If an "operation" is that effective, car manufacturer would have thought of it moonlight years ago.

A classic case of 识少少 扮代表
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#9

Posted 16 April 2019 - 12:35 PM

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If an "operation" is that effective, car manufacturer would have thought of it moonlight years ago.

A classic case of 识少少 扮代表

Sometime it is the case of regulation. Like catback which rob power but it is needed for environmental protection.


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#10

Posted 16 April 2019 - 01:20 PM

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There are 2 functions for the exhaust muffler..

 

1.  Reduce noise and pollution

2.  Redirect the back pressure of the internal combustion engine back toward the engine or around an internal chamber.

 

If you remove the muffler or "operate" to remove the internal structural to make it "straight thru", engine that are designed with a certain amount of exhaust resistance (back pressure), performance of the car will suffer.

 

It is best to change the entire exhaust system instead of "operating" it.... anyway since both ways are illegal, then go for a more reliable method.  Even "operating" may be much cheaper but comparing with the value of the car, I think better pay more for a proper set up.

 

My 5 cents opinion.
 



#11

Posted 16 April 2019 - 02:22 PM

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It is best to change the entire exhaust system instead of "operating" it.... anyway since both ways are illegal, then go for a more reliable method.  Even "operating" may be much cheaper but comparing with the value of the car, I think better pay more for a proper set up.

 

My 5 cents opinion.
 

 

ya, agree. 

 

Keep the original exhaust in storeroom, can use it if 1) kenna caught 2) swap for inspections. 

 

Operate liao, if kenna discovered ....... then have to get new one. Its not cheap + may not have stock. 

 

Not much difference in cost anyway


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#12

Posted 16 April 2019 - 02:43 PM

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There are 2 functions for the exhaust muffler..

 

1.  Reduce noise and pollution

2.  Redirect the back pressure of the internal combustion engine back toward the engine or around an internal chamber.

 

If you remove the muffler or "operate" to remove the internal structural to make it "straight thru", engine that are designed with a certain amount of exhaust resistance (back pressure), performance of the car will suffer.

 

It is best to change the entire exhaust system instead of "operating" it.... anyway since both ways are illegal, then go for a more reliable method.  Even "operating" may be much cheaper but comparing with the value of the car, I think better pay more for a proper set up.

 

My 5 cents opinion.
 

absolutely right.

thats y u see alot of small cc cars zing their exhaust until very loud.

but their pick up very slow, infact slower then when using stock ..

 

its not so simple u install a racing exhaust your car gain power.

if not those professional car modifiers shop wont be charging so high.


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#13

Posted 16 April 2019 - 02:49 PM

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Hi guys,

 

I have been searching for threads regarding modding exhausts but couldnt find the info i needed. As such, started this new thread here.

 

My bro-in-law bought a Perodua Myvi (previous gen) through a parallel importer some time back and is looking to zhng the exhaust to sound more bassy (something along the lines of the Imprezas in the early 2000s) but couldnt find any LTA approved exhausts after asking around.

 

So we went to Skyrex Exhausts recently. They mentioned they can customize the exhausts to fit the car. The actual words they used were "use stock exhausts operate". They didnt elaborate much as we visited them close to their closing timing.

 

Can anyone here provide some wisdom on what exactly do they mean and if its street legal?

 

 

{PS: Sorry for asking such a noob question, am new to this whole car mod-ing game and thank you in advance!}

 

second hamburger. dont waste time and money and let idiots who have no inkling of engine exhaust design to destroy the power and fuel economy of the engine.
 

exhaust specialist shop in singapore? Please... all they do is butcher the exhaust and tell you if there is power loss its like that one.

How can any local exhaust shop without any dyno and exhaust gas flow meters know what the hell they are doing. use butt feel i also know.


Edited by Mkl22, 16 April 2019 - 02:55 PM.

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#14

Posted 16 April 2019 - 02:52 PM

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Thank you everyone for the insights! I didnt realize there is so much to consider when want to zhng exhaust.

At least now I am more well-informed.

Edited by _Sam_, 16 April 2019 - 02:53 PM.

In life, you make choices and you don't look back because the choices made were based on the circumstances then.

#15

Posted 16 April 2019 - 03:04 PM

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Just drill a couple of holes in the exhaust (before the muffler) - the car will sound very sporty!


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#16

Posted 16 April 2019 - 03:22 PM

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seriously, do consider this... 

 


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#17

Posted 16 April 2019 - 06:04 PM

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Thank you everyone for the insights! I didnt realize there is so much to consider when want to zhng exhaust.

At least now I am more well-informed.


I speak with confidence of its unwortiness.

Cos been there done that 15 years ago where it was a trend.

Simple minded and money wasted. So please don't follow suit.
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#18

Posted 16 April 2019 - 10:06 PM

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Hahahahahahahaha you so bad one.  :a-fun:  :a-m1524:  :a-m1212:  :a-whiteflag:

Don't waste time. Change to a proper exhaust.

That again it's a Myvi, all the more don't waste time and money.

Take the money and treat the family to a good meal.

 


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#19

Posted 17 April 2019 - 10:42 PM

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Hi guys,

 

I have been searching for threads regarding modding exhausts but couldnt find the info i needed. As such, started this new thread here.

 

My bro-in-law bought a Perodua Myvi (previous gen) through a parallel importer some time back and is looking to zhng the exhaust to sound more bassy (something along the lines of the Imprezas in the early 2000s) but couldnt find any LTA approved exhausts after asking around.

 

So we went to Skyrex Exhausts recently. They mentioned they can customize the exhausts to fit the car. The actual words they used were "use stock exhausts operate". They didnt elaborate much as we visited them close to their closing timing.

 

Can anyone here provide some wisdom on what exactly do they mean and if its street legal?

 

 

{PS: Sorry for asking such a noob question, am new to this whole car mod-ing game and thank you in advance!}

I don't remember Imprezas having bassy sounding exhaust in the early 2000s, unless you are talking about the flapping droning exhaust sound of the WRX...which no matter how you operate your exhaust, will never get that effect.

 

To get that you need to have an uneven header which is only possible with a boxer engine or a V type engine. The Perodua is an inline 4 (or 3?) engine.

 

Anyway based on past modding experience, if you like to mod, you should have never gotten a NA engine car. NA there's nothing to play in the legal field. All the NA mods like the 4-2-1 headers, decat, straightthru, operate exhaust are all out of legal boundaries as they are consider "exhaust mods". To make matters worst the gains are so little it's not worth the fine and summons.

 

Want to mod? Get a car with Turbo. Turbo modding is much more versatile and mainly within legal boundary cos the intercooler, pipes and even the turbo itself are considered "intake mods" which LTA mostly bochup. Even without changing the turbo you can get visible gains with only chip tuning. Hack even a small 1.0 turbo car like the Suzuki Swift can go far without going illegal.

 

So my suggestion to your Bro-in-Law. What to mod? Change car first..


Edited by Pocus, 17 April 2019 - 10:44 PM.


#20

Posted 17 April 2019 - 10:45 PM

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Hahahahahahahaha you so bad one.  :a-fun:  :a-m1524:  :a-m1212:  :a-whiteflag:


Not that. He has failed to accord respect to what others wishes and even have to comment, it really need not be so crude.


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