bimmerpost/
BMW M2 and 2-Series Coupe
BMW Garage BMW Meets Register Today's Posts
home
BMW M2 Forums 2023+ (G87) Engine, Exhaust, Drivetrain, Tuning Modifications

Post Reply
 
Thread Tools Search this Thread
      08-29-2024, 06:56 AM   #1
Fastfwd
Private First Class
260
Rep
189
Posts

Drives: '24 G87 M2
Join Date: Aug 2023
Location: USA

iTrader: (0)

Aftermarket Exhaust Rattles?

I'm just curious after watching a few installation videos on Youtube for aftermarket exhaust systems if some of these are known to rattle after a while?

Basically, it looks like you're cutting up your solid fully welded exhaust system and depending on how much you are cutting out you are adding multiple joints with nuts and bolts holding those joints together.

Does that become a hassle to keep those joints tightened up over time?
Appreciate 0
      08-29-2024, 01:03 PM   #2
mike@x-ph.com
Joint Chiefs of Staff
mike@x-ph.com's Avatar
United_States
26914
Rep
195,888
Posts

Drives: 07-335/12-328/18-M4/21-M4CP
Join Date: Sep 2013
Location: Las Vegas

iTrader: (23)

Cutting the exhaust and using clamps to connect it is not an issue. I have been doing it on my cars for over 15 years, and so have countless others.

As for the rattle, that depends on the exhaust you are getting. Some of them are known to cause this sound, others dont.

Let me know which exhaust you are interested in and i will give you my honest opinion
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/

Phone number 702-494-9435
Appreciate 0
      08-31-2024, 03:44 PM   #3
Info@mad-us.com
Major General
Info@mad-us.com's Avatar
3020
Rep
6,393
Posts

Drives: bmw
Join Date: Mar 2021
Location: Mad-us.com

iTrader: (0)

Quote:
Originally Posted by Fastfwd View Post
I'm just curious after watching a few installation videos on Youtube for aftermarket exhaust systems if some of these are known to rattle after a while?

Basically, it looks like you're cutting up your solid fully welded exhaust system and depending on how much you are cutting out you are adding multiple joints with nuts and bolts holding those joints together.

Does that become a hassle to keep those joints tightened up over time?
Bmw themselves has been using the the cut and clamp method for a long time now and they even included cut points on the factory system now. As long as the clamps remain in good condition you really have no worries with clamping on midpipes or axlebacks.


Are you referring to valve rattles? Those seem to be caused by certain midpipe designs.
__________________
- Click Here
Performance Parts For Your Bmw At Crazy Low Prices!
Email: info@mad-us.com

Last edited by Info@mad-us.com; 09-01-2024 at 10:52 PM..
Appreciate 0
      09-01-2024, 03:06 PM   #4
mike@x-ph.com
Joint Chiefs of Staff
mike@x-ph.com's Avatar
United_States
26914
Rep
195,888
Posts

Drives: 07-335/12-328/18-M4/21-M4CP
Join Date: Sep 2013
Location: Las Vegas

iTrader: (23)

Quote:
Originally Posted by Info@mad-us.com View Post
Bmw themselves has been using the the cult and clamp method for a long time now and they even included cut points on the factory system now. As long as the clamps remain in good condition you really have no worries with clamping on midpipes or axlebacks.


Are you referring to valve rattles? Those seem to be caused by certain midpipe designs.
+1

the rattle is either caused by certain midpipe designs or the the midpipe hitting the brace
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/

Phone number 702-494-9435
Appreciate 0
      09-02-2024, 03:38 AM   #5
merk_millie
New Member
8
Rep
6
Posts

Drives: G87
Join Date: Jul 2024
Location: Phoenix, AZ

iTrader: (0)

Im running Mperformance exhaust with an active autowerke equal length mid pipe and on start up you can hear a slight rattle for a few seconds. Once the idle comes down it'll go away.
Appreciate 0
      09-04-2024, 10:58 AM   #6
Ehloo
Major
661
Rep
1,136
Posts

Drives: 15 x5 m
Join Date: Oct 2015
Location: Norcal

iTrader: (0)

no one has mentioned it yet but the valves are a common problem causing rattling and noises. something about the valve spring either having too much or too little tension. i have heard this in several system. Looks easily fixed with some adjustment


Quote:
Originally Posted by Fastfwd View Post
I'm just curious after watching a few installation videos on Youtube for aftermarket exhaust systems if some of these are known to rattle after a while?

Basically, it looks like you're cutting up your solid fully welded exhaust system and depending on how much you are cutting out you are adding multiple joints with nuts and bolts holding those joints together.

Does that become a hassle to keep those joints tightened up over time?
Appreciate 0
      09-04-2024, 05:26 PM   #7
mike@x-ph.com
Joint Chiefs of Staff
mike@x-ph.com's Avatar
United_States
26914
Rep
195,888
Posts

Drives: 07-335/12-328/18-M4/21-M4CP
Join Date: Sep 2013
Location: Las Vegas

iTrader: (23)

Quote:
Originally Posted by Ehloo View Post
no one has mentioned it yet but the valves are a common problem causing rattling and noises. something about the valve spring either having too much or too little tension. i have heard this in several system. Looks easily fixed with some adjustment
good point
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/

Phone number 702-494-9435
Appreciate 0
Post Reply

Bookmarks


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 01:41 PM.




g87
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