BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
Post Reply
 
Thread Tools Search this Thread
      11-24-2013, 05:54 PM   #1
jss1
New Member
0
Rep
17
Posts

 
Drives: 2013 M3
Join Date: Sep 2013
Location: Kentucky

iTrader: (0)

Did your BMW Performance Exhaust get louder over time?

If so, how did it take for you to notice. Thanks in advance.
__________________
Appreciate 0
      11-24-2013, 06:25 PM   #2
Denk
Lieutenant Colonel
United_States
23
Rep
1,973
Posts

 
Drives: E92 M3 ZCP
Join Date: May 2011
Location: PNW

iTrader: (2)

I noticed a nice little spike in the volume at ~3k rpm's ~5 months into the MPE.
That was 1.5 years ago, no noticeable changes since.
Appreciate 0
      11-24-2013, 07:01 PM   #3
jrse92m3
Private First Class
1
Rep
123
Posts

 
Drives: white E92 M3
Join Date: Jan 2013
Location: Whitestone NY

iTrader: (0)

Yes between 2500 and 3K rpm it get louder after 1000 miles
Appreciate 0
      11-24-2013, 09:31 PM   #4
hpc3
Second Lieutenant
hpc3's Avatar
United_States
2
Rep
253
Posts

 
Drives: '13 M3 ZCP 6sp
Join Date: May 2008
Location: Carolinas

iTrader: (0)

I think mine has gotten more quiet after a year...

Quote:
Originally Posted by jss1 View Post
If so, how did it take for you to notice. Thanks in advance.
or I'm just used to it now.
__________________
'13 E92 M3 - SG/FR ZCP 6sp with sunroof *and* wood (old fart edition). MPE. Turner 10mm spacers x4.

Born on 07/04/12, PCD September 5th, 2012.
Appreciate 0
      11-24-2013, 10:23 PM   #5
FogCityM3
Lieutenant Colonel
FogCityM3's Avatar
36
Rep
1,744
Posts

 
Drives: M3 (E90)
Join Date: Feb 2012
Location: San Francisco

iTrader: (0)

Yes, definitely got louder as the fiberglass in the cans melts over time. It got to its present volume after about 6 months/8k miles. Especially there is a louder resonance (wouldn't say drone as it is not annoying) right around 3,900-4,000 rpm.
Appreciate 0
      11-24-2013, 10:58 PM   #6
Keynesallacy
Registered
0
Rep
2
Posts

 
Drives: bmw
Join Date: Nov 2013
Location: london

iTrader: (0)

It's not enough to just look at bearing clearance unless you also look at journal size. It's the ratio of clearance to journal size that is the all important piece of information we want out of this.
__________________
The most attractive Charming Flower Legging is its soft and delicate embroidery designs.
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
Forum Jump


All times are GMT -5. The time now is 10:30 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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