2010 2011 BMW 5 Series Forum F10
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
 

2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications Made a custom exhaust and x-pipe
Post Reply
 
Thread Tools Search this Thread
      12-20-2012, 04:24 PM   #67
topaz330
Private
2
Rep
58
Posts

 
Drives: 13 550ix
Join Date: Dec 2012
Location: NJ

iTrader: (0)

my exhaust shop was looking at doing a similar setup but said that all he needed to do was add side branch resonators to the system to eliminate the drone. has anyone done this? i googled and came up with tons of posts that say this really works.

http://www.6speedonline.com/forums/m...esonators.html
__________________

Last edited by topaz330; 12-21-2012 at 08:57 AM.
Appreciate 0
      12-22-2012, 06:22 AM   #68
Edman951
Second Lieutenant
Edman951's Avatar
Canada
10
Rep
285
Posts

 
Drives: F10 550xi, Alpine white
Join Date: Nov 2006
Location: Montreal, Quebec

iTrader: (1)

Yes to remove the drone a branch resonator per muffler can help, or eliminate the drone.But it needs to be correctly sized. As the resonance needs the correct volume to disapate its self.
I added some to my setup, but i didnt size it right. So this winter i will redo it.
__________________
F10 550i Xdrive M sport, white
trade-in 2008 E90 M3
Appreciate 0
      12-31-2012, 01:12 PM   #69
topaz330
Private
2
Rep
58
Posts

 
Drives: 13 550ix
Join Date: Dec 2012
Location: NJ

iTrader: (0)

Quote:
Originally Posted by Edman951 View Post
Yes to remove the drone a branch resonator per muffler can help, or eliminate the drone.But it needs to be correctly sized. As the resonance needs the correct volume to disapate its self.
I added some to my setup, but i didnt size it right. So this winter i will redo it.
gotcha, so in your opinion, remove the secondary cats or leave it in?
__________________
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 05:52 AM.




5post
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