BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Back to stock exhaust

Post Reply
 
Thread Tools Search this Thread
      12-12-2019, 04:13 PM   #1
srmast1
Captain
srmast1's Avatar
United_States
278
Rep
649
Posts

Drives: 2018 6mt AW m2
Join Date: Feb 2016
Location: fresno, CA

iTrader: (0)

Garage List
2008 Audi A4  [0.00]
2019 Acura MDX SH-AWD  [0.00]
2011 e90 M3  [0.00]
Back to stock exhaust

Hello everybody I just went from an mpe to stock exhaust on my 2018 m2 and it is a night and day difference for the better(in my opinion). I picked up a gently used stock exhaust for a very good price from a fellow forum member. Now the exhaust note is that perfect, tasteful, 6 cylinder sound BMW is known for. With the mpe, it was just loud all the time with earsplitting drone from ~ 2700 to ~ 3500 rpm in all gears. The lack of resonators allows resonance at a frequency I cannot bear and It was incredibly awful on the highway even with sonic filters.

Periodically I would have to down shift into 5th gear on the highway to avoid aural fatigue. Now, no more sonic filters needed and no more aural fatigue, I can hear my music on the highway and I can drive with my windows down in the city. Also, I no longer startle children and the elderly with my exhaust startup cacophony. I was thinking of adding insulation and all that, but swapping exhaust was an easier fix.

In conclusion, for all those people who find the drone unbearable or are sensitive to that particular frequency, swapping back to stock exhaust fixes it completely. I have not noticed any acceleration differences either. I do not track it however, I daily it. I am 1000% saitisfied!

Last edited by srmast1; 12-12-2019 at 04:21 PM..
Appreciate 4
Poochie3631.00
tranck399.00

      12-12-2019, 04:20 PM   #2
Bewstd
Enlisted Member
United_States
25
Rep
41
Posts

Drives: BMW M2, RAM 2500
Join Date: Oct 2019
Location: Tennessee

iTrader: (0)

my fabspeed muffler bypass is pretty bad with drone but it makes fun noises
__________________
2018 M2- Alpine White 6spd

some two wheeled fun and a tow rig
Appreciate 0
      12-12-2019, 04:31 PM   #3
Poochie
Luxury at the redline :)
Poochie's Avatar
United_States
3631
Rep
4,176
Posts

Drives: 2016 M2
Join Date: Aug 2012
Location: NYC

iTrader: (1)

Good for you!

I never understood the appeal of a loud, obnoxious exhaust..

I mean, there must be a more civil way of letting the world know you have a small penis.
Appreciate 12
Tornado1M557.50
cptobvious2001.00
///M TOWN2481.00
Davil1427.00
Cadillac119.00
heavyD^21031.00
Altra166.00
hz10156.00
AdonM340.50
Fedorov82.50

      12-12-2019, 04:43 PM   #4
mr_lab_rat
Captain
mr_lab_rat's Avatar
377
Rep
813
Posts

Drives: 2017 M2, 2018 X1
Join Date: Jul 2017
Location: Vancouver

iTrader: (0)

Heh. I like the deep growl of the MPE but it is a bit on the loud side even with the flaps closed. I'm reluctant to get a downpipe because that would push it over my noise tolerance level.
Appreciate 0
      12-12-2019, 05:04 PM   #5
DanG
Brigadier General
DanG's Avatar
United_States
2223
Rep
3,793
Posts

Drives: 2018 M2 AW DCT
Join Date: Aug 2012
Location: Seattle, WA

iTrader: (1)

Garage List
2018 BMW M2  [4.87]
You must have not coded out or bypassed ASD. That is the source of your drone. My MPE with bypassed ASD has zero drone. And it isn’t very load at highway speeds.
Appreciate 0
      12-12-2019, 05:13 PM   #6
MR_M2
First Lieutenant
422
Rep
396
Posts

Drives: 2017 M2 6MT
Join Date: Sep 2016
Location: Bay Area

iTrader: (0)

Quote:
Originally Posted by DanG View Post
You must have not coded out or bypassed ASD. That is the source of your drone. My MPE with bypassed ASD has zero drone. And it isn't very load at highway speeds.
I think you have 1-of-1, drone free MPE.
Appreciate 2
Poochie3631.00
ried593.50

      12-12-2019, 05:26 PM   #7
Poochie
Luxury at the redline :)
Poochie's Avatar
United_States
3631
Rep
4,176
Posts

Drives: 2016 M2
Join Date: Aug 2012
Location: NYC

iTrader: (1)

Quote:
Originally Posted by MR_M2 View Post
Quote:
Originally Posted by DanG View Post
You must have not coded out or bypassed ASD. That is the source of your drone. My MPE with bypassed ASD has zero drone. And it isn't very load at highway speeds.
You think you have 1-of-1, drone free MPE.
Everyone knows the M Performance exhaust is barely audible - from space..


Appreciate 0
      12-12-2019, 05:36 PM   #8
andrewc89
Colonel
andrewc89's Avatar
United_States
6723
Rep
2,908
Posts

Drives: 2017 M2 | 2015 328dx
Join Date: Aug 2010
Location: New Jersey

iTrader: (5)

Garage List
2017 M2  [5.00]
2015 328d xDrive  [0.00]
Quote:
Originally Posted by MR_M2 View Post
I think you have 1-of-1, drone free MPE.
Sound is pretty subjective as everyone's ears are a bit different. Some of us are probably more tone deaf/noise tollerant than others.
Appreciate 2
bmwm2nyc225.00
qnet540.00

      12-12-2019, 06:08 PM   #9
M2PDX
Captain
United_States
852
Rep
776
Posts

Drives: 2017 M2
Join Date: Aug 2013
Location: Portland, Oregon

iTrader: (0)

Get rid of ASD, and you'll be able to hear the real sound of your M2, with or without the stuck exhaust.
Appreciate 0
      12-12-2019, 10:46 PM   #10
srmast1
Captain
srmast1's Avatar
United_States
278
Rep
649
Posts

Drives: 2018 6mt AW m2
Join Date: Feb 2016
Location: fresno, CA

iTrader: (0)

Garage List
2008 Audi A4  [0.00]
2019 Acura MDX SH-AWD  [0.00]
2011 e90 M3  [0.00]
Quote:
Originally Posted by DanG View Post
You must have not coded out or bypassed ASD. That is the source of your drone. My MPE with bypassed ASD has zero drone. And it isnít very load at highway speeds.
ASD bypass was the 1st thing I did in hopes of killing the drone. ASD actually makes the drone a little less noticable. I think I must be sensitive to that particular resonant frequency. I can't stand heavy bass either. I understand some people dont hear the drone as much, but I can't stand it.
Appreciate 0
      12-13-2019, 06:21 AM   #11
Davil
Captain
Australia
1427
Rep
869
Posts

Drives: Various
Join Date: Jul 2018
Location: Australia

iTrader: (0)

Quote:
Originally Posted by Poochie View Post
Good for you!

I never understood the appeal of a loud, obnoxious exhaust..

I mean, there must be a more civil way of letting the world know you have a small penis.
Hahaha.

So 5 monster is really 5cm monster then?
Appreciate 2
Poochie3631.00
hlm2c68.50

      12-13-2019, 10:29 AM   #12
dcmac
Lieutenant
dcmac's Avatar
360
Rep
403
Posts

Drives: '18 LCI M2
Join Date: Nov 2016
Location: Denver, CO

iTrader: (0)

Each to their own I guess. My "obnoxiously loud" catless system is my favourite part of the car! Sonorous N55 notes to make my day that much more special.
Appreciate 0
      12-13-2019, 03:44 PM   #13
mr_lab_rat
Captain
mr_lab_rat's Avatar
377
Rep
813
Posts

Drives: 2017 M2, 2018 X1
Join Date: Jul 2017
Location: Vancouver

iTrader: (0)

Quote:
Originally Posted by DanG View Post
You must have not coded out or bypassed ASD. That is the source of your drone. My MPE with bypassed ASD has zero drone. And it isnít very load at highway speeds.
Quote:
Originally Posted by MR_M2 View Post
I think you have 1-of-1, drone free MPE.
He's on shitty Seattle roads, can't hear the drone over tire noise

I got the ASD off and droning is tolerable with the flaps closed but it's there.
Appreciate 0
      12-14-2019, 02:02 AM   #14
srmast1
Captain
srmast1's Avatar
United_States
278
Rep
649
Posts

Drives: 2018 6mt AW m2
Join Date: Feb 2016
Location: fresno, CA

iTrader: (0)

Garage List
2008 Audi A4  [0.00]
2019 Acura MDX SH-AWD  [0.00]
2011 e90 M3  [0.00]
I do a decent amount of highway driving and the drone around 3000 rpm in 6th gear was too much for me. There is still all the road noise which is substantial, but that damn drone is gone.
Appreciate 0
      12-16-2019, 11:25 AM   #15
WedgeSalad
Private First Class
United_States
25
Rep
104
Posts

Drives: 2018 F87 M2
Join Date: Aug 2018
Location: SoCal

iTrader: (0)

I have just a sport cat with stock exhaust and its damn near perfect. Quiet when i want and loud when i want. No drone what so ever.
Appreciate 0
      12-16-2019, 11:48 AM   #16
cecaa850
Lieutenant
United_States
182
Rep
511
Posts

Drives: 2018 M2
Join Date: May 2018
Location: South East TX.

iTrader: (0)

Quote:
Originally Posted by WedgeSalad View Post
I have just a sport cat with stock exhaust and its damn near perfect. Quiet when i want and loud when i want. No drone what so ever.
Same here with stock resonator and ASD delete. It's perfect.
Appreciate 0
      12-16-2019, 12:11 PM   #17
ZM2
Lieutenant Colonel
974
Rep
1,599
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (0)

Stock exhaust and 300-cell DP (with ASD off) is as loud as I want to go to keeps things civil on long drives.
Appreciate 0
      12-16-2019, 12:26 PM   #18
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
10960
Rep
120,245
Posts


Drives: 2007 e92 335i / 2013 F30 328
Join Date: Sep 2013
Location: Las Vegas

iTrader: (20)

when picking an exhaust its very important to ask vendors who heard all the different systems in person for an honest opinion. Some want loud and aggressive , don't care about drone. others want deep tone with no drone,etc...
if done right, the exhaust mod is going to become your favorite favorite part of the car
Appreciate 0
      12-16-2019, 01:11 PM   #19
WedgeSalad
Private First Class
United_States
25
Rep
104
Posts

Drives: 2018 F87 M2
Join Date: Aug 2018
Location: SoCal

iTrader: (0)

Quote:
Originally Posted by cecaa850 View Post
Same here with stock resonator and ASD delete. It's perfect.
Do you like the ASD delete? I havent done this yet but it sounds like the final step aside from some black exhaust tips.
Appreciate 0
      12-16-2019, 02:07 PM   #20
cecaa850
Lieutenant
United_States
182
Rep
511
Posts

Drives: 2018 M2
Join Date: May 2018
Location: South East TX.

iTrader: (0)

Quote:
Originally Posted by WedgeSalad View Post
Do you like the ASD delete? I havent done this yet but it sounds like the final step aside from some black exhaust tips.
It was the first thing I did and afterwards wondered why they use it in the first place. It sounds like the engine is all around you. Once you delete it or code it out you realize how artificial the sound actually is.
Appreciate 0
      12-16-2019, 02:52 PM   #21
ZM2
Lieutenant Colonel
974
Rep
1,599
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (0)

Quote:
Originally Posted by cecaa850 View Post
It was the first thing I did and afterwards wondered why they use it in the first place. It sounds like the engine is all around you. Once you delete it or code it out you realize how artificial the sound actually is.
Gets rid of some faux drone, too, that gives you a headache after a cpl hours of driving.
Appreciate 0
      12-17-2019, 03:48 AM   #22
srmast1
Captain
srmast1's Avatar
United_States
278
Rep
649
Posts

Drives: 2018 6mt AW m2
Join Date: Feb 2016
Location: fresno, CA

iTrader: (0)

Garage List
2008 Audi A4  [0.00]
2019 Acura MDX SH-AWD  [0.00]
2011 e90 M3  [0.00]
Quote:
Originally Posted by cecaa850 View Post
Same here with stock resonator and ASD delete. It's perfect.
Yup, I love that setup. My highway commutes are so much more pleasurable now. I no longer have to deal with ear fatigue and I can hear music. Its wonderful. I like a quieter, more tasteful exhaust note. In stock form, I feel that the m2 has an aggressive yet tasteful exhaust note.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:28 PM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST