E90Post
 


GetBMWParts
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Exhaust Note



Reply
 
Thread Tools Search this Thread
      04-22-2013, 08:10 AM   #1
practice89
Private
0

 
Drives: 2011 335xi
Join Date: Mar 2013
Location: United States


Posts: 69
iTrader: (0)

Exhaust Note

Every time during a cold start, my exhaust sound like there's something rattling something similiar to a tin can? lol but it ends up sounding normal again after a minute.

Was wondering if this is normal (hopefully not), if not, what can be wrong with it?


Thanks.
Appreciate 0
      04-22-2013, 08:52 AM   #2
Dark_Knight_335
Came to the N55 Darkside
United_States
148

 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ


Posts: 10,527
iTrader: (27)

Normal. Do you have a 335? If so, that's the turbos getting all toasty and happy.
Appreciate 0
      04-22-2013, 06:14 PM   #3
CombatNinja
Banned
19

 
CombatNinja's Avatar
 
Drives: e91 328i, e90 328i, e90 335i
Join Date: Feb 2011
Location: United States


Posts: 1,587
iTrader: (0)

Vacuum-actuated flap valve inside the muffler to quiet the exhaust on cold start. 90% of the one I hear make noise on startup to varying degrees. Unplug the connector behind the driver's side tail light in the trunk. Now al you will hear is loud exhaust noise instead of a metallic rattle. Pick your poison.
Appreciate 0
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 08:21 AM.




e90post
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