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      02-18-2013, 12:15 PM   #1
Obrfso
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Oem Mod Exhaust, Please Help!!!

hi guys!!!



Could you please tell me what are the methods of modification the standard m3 e92 exhaust? apparently there are 3... i found only 2 and there are no examples how they sound.

There are plenty of clips but they all sound different. i tried to look in the forum but it is not clearly stated.


Thanks alot for help!!!
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      02-18-2013, 12:17 PM   #2
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this might help

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      02-18-2013, 12:18 PM   #3
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Do a search. I think there are tons of pics and videos on utube aswell. I had it done. Sounds very soft. No drone.
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      02-18-2013, 12:24 PM   #4
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tmntmn thanks alot for great clip


ps. do you know what is the db difference between these two types of modifications?
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      02-18-2013, 12:32 PM   #5
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Quote:
Originally Posted by Obrfso View Post
hi guys!!!



Could you please tell me what are the methods of modification the standard m3 e92 exhaust? apparently there are 3... i found only 2 and there are no examples how they sound.

There are plenty of clips but they all sound different. i tried to look in the forum but it is not clearly stated.


Thanks alot for help!!!
There's only 2. And both of them are on the video linked above.
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      02-18-2013, 12:36 PM   #6
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Quote:
Originally Posted by Obrfso View Post
tmntmn thanks alot for great clip


ps. do you know what is the db difference between these two types of modifications?
straight through (ACM MOD) is going to be alot lounder, not sure about db # difference.
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      02-18-2013, 01:39 PM   #7
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Quote:
Originally Posted by Obrfso View Post
hi guys!!!



Could you please tell me what are the methods of modification the standard m3 e92 exhaust? apparently there are 3... i found only 2 and there are no examples how they sound.

There are plenty of clips but they all sound different. i tried to look in the forum but it is not clearly stated.


Thanks alot for help!!!
Here you go...link to my post..my oem.exhaust mod.with pics+video wvvvvvvvvv
http://www.m3post.com/forums/showthread.php?t=733817
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      02-18-2013, 02:02 PM   #8
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just had the EAS (center) method done to my exhaust this weekend. Holy crap, it sounds great, and as others have said...no drone.
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      02-19-2013, 04:32 AM   #9
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Thanks Mpower-Belgium for the link. Did you get rid of the grandma's hair or dead animal as others say? I am still not sure which method to do( straight pipe seems sick but the first clip on this tread looks awesome as well (black car)...


I am only afraid that straight pipe will make car to be too loud...what do you think?

Mpower-Belgium didn't you think to do straight pipe? Why did you decide to do this method?

Thanks alot for help guys!!!
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      02-19-2013, 08:07 AM   #10
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Quote:
Originally Posted by Obrfso View Post
Thanks Mpower-Belgium for the link. Did you get rid of the grandma's hair or dead animal as others say? I am still not sure which method to do( straight pipe seems sick but the first clip on this tread looks awesome as well (black car)...


I am only afraid that straight pipe will make car to be too loud...what do you think?

Mpower-Belgium didn't you think to do straight pipe? Why did you decide to do this method?

Thanks alot for help guys!!!
Yes keep the dead animal in there.

Only do the straight-pipe method if you KNOW you want a very loud car. If you are hesitant, stick to the perforated pipe method.
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      02-19-2013, 08:07 AM   #11
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Quote:
Originally Posted by Obrfso View Post
Thanks Mpower-Belgium for the link. Did you get rid of the grandma's hair or dead animal as others say? I am still not sure which method to do( straight pipe seems sick but the first clip on this tread looks awesome as well (black car)...


I am only afraid that straight pipe will make car to be too loud...what do you think?

Mpower-Belgium didn't you think to do straight pipe? Why did you decide to do this method?

Thanks alot for help guys!!!
I have the straight pipe method and I don't think it's too loud. As I was telling another member:
- Car should have come from factory with the perforated pipes solid. If you go this way, then yes, leave the fiberglass in.

- If you want a modified sounding exhaust, then go with the straight pipe method.

Hope this helps.
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      02-19-2013, 03:02 PM   #12
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Quote:
Originally Posted by Obrfso View Post
Thanks Mpower-Belgium for the link. Did you get rid of the grandma's hair or dead animal as others say? I am still not sure which method to do( straight pipe seems sick but the first clip on this tread looks awesome as well (black car)...


I am only afraid that straight pipe will make car to be too loud...what do you think?

Mpower-Belgium didn't you think to do straight pipe? Why did you decide to do this method?

Thanks alot for help guys!!!
Look...SOUND !!! is very personal,some like it loud...others not to loud !
For example...i work in shifts...this week i need to leave at 04.30 am..do you want to wake up your neighbors??? yes???go with a loud exhaust + drone !!!
Do you want a nice & sporty exhaust sound..(the black car on the first clip that you like) and not to loud...and without drone..that is my method,and my car sounds identic the same...and for me (personal) it's just...PERFECT !
Think also...the cold start...with this mod. ...Jesus !
So ...i have now a problem in am-shift...why ??? i don't want to wake up al my neighbors,and take the Mini-one from my wife...pm-shift...it's ok
Now i have some members assised with this oem.exhaust mod. with PM's and with the link from my post about this,on my post you can see the video and the comparing oem. exhaust mod. and Eissenman and it is only 2 db of difference;
So it's up to you..(personal).and make your decision...louder... or to loud !!!
BTW...you can alway PM me...and i will help you..just like i did with the other members

Last edited by ///M Power-Belgium; 02-19-2013 at 03:12 PM.
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      02-19-2013, 03:07 PM   #13
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Quote:
Originally Posted by tmntmn View Post
this might help

Nice video, I think the straight through has a more exotic sound from the rest.
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      02-19-2013, 03:32 PM   #14
///M Power-Belgium
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Ahhhhh....my friend...STi traitor !
i was thinking about your Turner-test pipe ?!?!and the car inspection in Germany and the exhaust gases (emissions.)..CO ! will you pass ???
Here in Belgium...it's NOPE...for the CO emissions !
I was considering to,for the Turner test pipe,but in Belgium it means..problems !

Last edited by ///M Power-Belgium; 02-19-2013 at 04:21 PM.
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      02-19-2013, 04:13 PM   #15
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lol at that sounding exotic.

That's the most over used word on this forum when it comes to exhausts.

Very few actually sound exotic.
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      02-19-2013, 04:34 PM   #16
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))))))

Right now i have got a scorpion exhaust which i bought in the UK. sounds good but i think the black m3 on the clip sounds awesome ))))

I think i will go for Mpower-Belgium method )) sounds better for me and whats more important i dont want to wake up too many neighbours ) there are anyway pissed off when i start my engine....

ps. you stated something about eisenmann... do you mean eisenmann sport or race?
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      02-19-2013, 04:56 PM   #17
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Quote:
Originally Posted by Obrfso View Post
))))))

Right now i have got a scorpion exhaust which i bought in the UK. sounds good but i think the black m3 on the clip sounds awesome ))))

I think i will go for Mpower-Belgium method )) sounds better for me and whats more important i dont want to wake up too many neighbours ) there are anyway pissed off when i start my engine....

ps. you stated something about eisenmann... do you mean eisenmann sport or race?
In the video of my link to my post you can see the oem. exhaust mod. replaced the 2 big perforated pipes by 2 full stainless steel pipes(my mod.) and the Eisenmann race exhaust .(DB- comparison)
For more details about all this ,you can alway's PM me
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      02-20-2013, 11:16 AM   #18
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I'm looking for a place near NYC or Boston that can perform the OEM exhaust mod -- NOT ACM style

So far no luck
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      02-23-2013, 06:44 PM   #19
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I've heard of three methods. 1 - acm mod. I had this one done and its perfect. 2- non perforated pipes method which involves cutting two pipes out an replacing with reg pipe. 3- wrapping the perforated pipes. Easiest one of all and it provides near identical outcome.
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      02-23-2013, 06:45 PM   #20
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Quote:
Originally Posted by SYT_Shadow View Post
I'm looking for a place near NYC or Boston that can perform the OEM exhaust mod -- NOT ACM style

So far no luck
Take it to any muffler shop and show them pics. They will do it for you
That's what I did and it cost me 2 hours of labour not 400 like some places charge.
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      02-23-2013, 08:11 PM   #21
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Sub question, how do dealerships feel about this mod and warranties?
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      02-24-2013, 01:31 PM   #22
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Quote:
Originally Posted by SYT_Shadow
I'm looking for a place near NYC or Boston that can perform the OEM exhaust mod -- NOT ACM style

So far no luck
We can do the center method for you if that's what you prefer...

Shoot me a PM with your contact info
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