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 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum M5 exhaust cabin noise level
Post Reply
 
Thread Tools Search this Thread
      07-06-2015, 11:37 PM   #1
AWF10
Lieutenant
United_States
57
Rep
582
Posts

Drives: 2011 535i
Join Date: Nov 2010
Location: TX

iTrader: (1)

M5 exhaust cabin noise level

I just got some m5 OEM exhaust installed on my 535i. I wired the exhaust flap open at all times. I'm happy with sound for most part but wanted to see if anyone else was having these issues. For the first 3 gears or so in regular driving mode it is too loud/drone exhaust note in the cabin. If I downshift a gear this helps with the sound while driving at all times. Is this issue due to the exhaust flap open at all times? Also does anyone know what this block metal that's attached to stock rear exhaust hangers? Thanks.
Attached Images
 
Appreciate 0
      07-08-2015, 09:59 PM   #2
TheEngineer
Enlisted Member
TheEngineer's Avatar
4
Rep
36
Posts

Drives: 2011 BMW 550i xDrive
Join Date: Jul 2014
Location: Massachusetts

iTrader: (1)

Yeah, its right around the 1800 rpm mark. My wife is threatening to take my car back and install the stock mufflers back onto it.
__________________
Appreciate 1
      07-08-2015, 10:16 PM   #3
bake
Colonel
bake's Avatar
United_States
602
Rep
2,188
Posts

Drives: 2011 F10, 2013 E93
Join Date: Apr 2010
Location: New York

iTrader: (9)

No way around that drone in Normal mode. Even my M Performance exhaust which is made for the 535 drones a bit in the range. Keep it in Sport and the issue is resolved.
__________________
Bake
2011 Alpine White on Black 535i M-Sport
2013 Space Gray on Fox Red M3 Vert
Appreciate 0
      07-08-2015, 11:04 PM   #4
AWF10
Lieutenant
United_States
57
Rep
582
Posts

Drives: 2011 535i
Join Date: Nov 2010
Location: TX

iTrader: (1)

Yea it's a drone but loud only the first few gears especially at lower RPMs between 1000-1800k. And worse when speeding up with foot barely mashing gas pedal I get a sound that rumbles inside cabin so much and is too loud in the rear seats. Wonder if it would help decrease cabin noise level if I returned both valves to stock position and dynomat under rear seat and upper trunk lid portion inside of trunk.
Appreciate 0
      07-09-2015, 08:06 AM   #5
Mbbrewer
Captain
Mbbrewer's Avatar
150
Rep
672
Posts

Drives: 550i
Join Date: Apr 2012
Location: Houston

iTrader: (1)

Thats what the flaps are for. Don't wire them open. You still get a very small drone but it's not overbearing at all.
Appreciate 0
      07-14-2015, 12:28 AM   #6
spyroz
Major
spyroz's Avatar
United_States
163
Rep
1,158
Posts

Drives: BMW f10 550i ///M Sport
Join Date: Apr 2010
Location: Dallas,TX

iTrader: (2)

did you install the crossmember on the bottom? check out my post on my OEM M5 competition package exhaust on my 550i
__________________
BMW f10 550i Msport
Appreciate 0
      07-15-2015, 07:41 PM   #7
kondor
Private First Class
kondor's Avatar
13
Rep
141
Posts

Drives: F10 550i M Sport
Join Date: Jan 2013
Location: DFW

iTrader: (0)

Quote:
Originally Posted by spyroz View Post
did you install the crossmember on the bottom? check out my post on my OEM M5 competition package exhaust on my 550i
Do you get any drone?
Appreciate 0
      07-15-2015, 10:39 PM   #8
spyroz
Major
spyroz's Avatar
United_States
163
Rep
1,158
Posts

Drives: BMW f10 550i ///M Sport
Join Date: Apr 2010
Location: Dallas,TX

iTrader: (2)

Quote:
Originally Posted by kondor View Post
Do you get any drone?
nope! Here's a link for my CP M5 exhaust.

__________________
BMW f10 550i Msport
Appreciate 0
      07-15-2015, 11:21 PM   #9
Mgone
Banned
55
Rep
346
Posts

Drives: X5
Join Date: Jun 2015
Location: In the Wheel of a BMW

iTrader: (0)

Quote:
Originally Posted by spyroz View Post
nope! Here's a link for my CP M5 exhaust.

Sounds Good!!!

Did you install aftermarket dp also? I hear the turbo. 👌🏽👌🏽👌🏽
Appreciate 0
      07-16-2015, 12:56 AM   #10
spyroz
Major
spyroz's Avatar
United_States
163
Rep
1,158
Posts

Drives: BMW f10 550i ///M Sport
Join Date: Apr 2010
Location: Dallas,TX

iTrader: (2)

No, stock dp...but the Cp M5 exhaust is straight through..that's y probably.
__________________
BMW f10 550i Msport
Appreciate 0
      07-16-2015, 10:18 AM   #11
AWF10
Lieutenant
United_States
57
Rep
582
Posts

Drives: 2011 535i
Join Date: Nov 2010
Location: TX

iTrader: (1)

Quote:
Originally Posted by Mbbrewer
Thats what the flaps are for. Don't wire them open. You still get a very small drone but it's not overbearing at all.
Yea I returned the exhaust flaps to the closed position and it's much better now while throttling.
Appreciate 0
      07-16-2015, 10:21 AM   #12
AWF10
Lieutenant
United_States
57
Rep
582
Posts

Drives: 2011 535i
Join Date: Nov 2010
Location: TX

iTrader: (1)

Quote:
Originally Posted by spyroz
did you install the crossmember on the bottom? check out my post on my OEM M5 competition package exhaust on my 550i
Yes I did install the crossmember bar between the 2 exhaust pipes before splitting off to each muffler. Only thing I can think is maybe that rear exhaust OEM hanger has something to do with it. I removed that piece off my stock 535i and used the stock m5 hangers which don't have that big metal block piece on it. The drone is much more tolerable now with exhaust valves closed position all times. Too bad 535i don't have the control to exhaust flaps.
Appreciate 0
      07-17-2015, 05:30 PM   #13
snowmuch
Second Lieutenant
105
Rep
254
Posts

Drives: 2016 Macan Turbo
Join Date: Apr 2015
Location: Calgary

iTrader: (2)

Just curious what the inline six sounds like with m5 exhaust?
Appreciate 0
      07-22-2015, 05:21 PM   #14
combatbmw
Major
206
Rep
1,250
Posts

Drives: 20' X3M CP
Join Date: Oct 2013
Location: SoCal

iTrader: (2)

Garage List
http://www.exhaustmeister.com/

Get that!
Open it when you want it open, close it when you want it closed.
I planned to use mine, but my Meisterschaft system has its own valve system and remotes.

I can sell you mine for 100 shipped.
let me know.
__________________
2020 X3M CP - IND Reflector set | Ceramic Tint
Retired:2015 M5 CP MSR Intake|Carbon Fiber Fender Vents|Meisterschaft GTC catback with LXR mid pipes and ER Catless DPs | BPMSPORT Stage II Tune | RKP Rear Diffuser and Challenge Center piece |RKP Front Lip| Painted Reflectors | H&R Springs | Strasse SM5R Carbon Fiber Wheels | Nitto R888 |
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 01:51 PM.




5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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