F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20 and N26 Turbo Engine / Drivetrain / Exhaust Modifications > Disabled control valve on 328i exhaust for better sound
Post Reply
 
Thread Tools Search this Thread
      04-14-2012, 09:00 AM   #1
TEAShea
Private First Class
 
Drives: 2012 328i
Join Date: Oct 2006
Location: Nebraska

Posts: 179
iTrader: (0)

Disabled control valve on 328i exhaust for better sound

I like exhaust sound. As you all know the 328i has almost none.

I disabled the control valve on the second exhaust pipe. It was even easier to do than on the prior generation car. This value is electrically operated instead of pneumatic. I had been concerned that I would have to cut the control stem or fuss with the wiring - but was concerned about throwing a code. Turned out to take exactly 30 seconds to disable mechanically.

BTW you can check to make sure the valve is open by feeling if the exhaust is coming out of the second pipe.

The bad news is that it made very little difference in sound.

So, now I am on to stage two of my options for getting a little more sound. I will keep you all informed.

Tom
TEAShea is offline  
0
Reply With Quote
      04-14-2012, 09:15 AM   #2
justinnum1
Brigadier General
 
Drives: 2013 335i Msport
Join Date: Nov 2006
Location: South Florida

Posts: 3,919
iTrader: (0)

What did you do to disable it? What is stage 2?
__________________
F30 335i Msport Estoril Blue/Black leather sport auto. black grills, Performance Exhaust, HK,
justinnum1 is online now  
0
Reply With Quote
      04-14-2012, 09:44 AM   #3
EuroTunerz5
Captain
 
Drives: 2012 AW BMW 135i M-Sport PPK
Join Date: Apr 2012
Location: Wisconsin

Posts: 667
iTrader: (6)

I really like the manga flow sound on the Audi 2.0t and I suspect it would sound similar on ours.... It makes the 2.0 sound like a 6 cylinder.. Perhaps this is our solution to the problem?
__________________
2012 BMW 135i M-Sport PPK AW with Black Boston Leather- SOLD
2010 Acura TSX V6 Tech BSM
2003 Corvette Z06 TR "Widebooty"
EuroTunerz5 is offline  
0
Reply With Quote
      04-14-2012, 09:50 AM   #4
TEAShea
Private First Class
 
Drives: 2012 328i
Join Date: Oct 2006
Location: Nebraska

Posts: 179
iTrader: (0)

To disable it, just remove the U shaped spring wire that connects the valve stem from the actuator.
TEAShea is offline  
0
Reply With Quote
      04-14-2012, 11:49 AM   #5
SomeRandomer123
Colonel
 
SomeRandomer123's Avatar
 
Drives: F30 328i Luxury - Sport Auto
Join Date: May 2011
Location: Lancashire, North West England, UK

Posts: 2,484
iTrader: (0)

When would this 2nd (assuming inner) exhaust normally open out of interest?
__________________

Gone: 2006 BMW E60 520d SE 6MT
Gone: 2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
My 328i initial thoughts + media!http://www.f30post.com/forums/showthread.php?t=712673
SomeRandomer123 is offline   England
0
Reply With Quote
      04-26-2012, 11:22 AM   #6
BMVeh
First Lieutenant
 
Drives: 2006 330i
Join Date: Apr 2012
Location: Tampa, FL

Posts: 367
iTrader: (4)

i believe its when you are WOT
BMVeh is offline  
0
Reply With Quote
      04-26-2012, 01:51 PM   #7
ric124
Lieutenant Colonel
 
ric124's Avatar
 
Drives: F30 335i SP 6MT
Join Date: Feb 2012
Location: South Florida

Posts: 1,549
iTrader: (0)

Garage List
Do you think its the same for the 335? Could you post some pics? Like a mini DIY
__________________
Timeline: 335i Sport W/ Adaptive M suspension| Sport Variable steering| Technology PKG| HK Sound PKG| BMW apps| BMW Assist| Sport line hand brake grip| M Performance black kidneys|
ric124 is offline   Jamaica
0
Reply With Quote
      05-07-2012, 11:58 AM   #8
SomeRandomer123
Colonel
 
SomeRandomer123's Avatar
 
Drives: F30 328i Luxury - Sport Auto
Join Date: May 2011
Location: Lancashire, North West England, UK

Posts: 2,484
iTrader: (0)

Quote:
Originally Posted by BMVeh
i believe its when you are WOT
It would definitely open then but is there other criteria like after 3000rpm for instance?
__________________

Gone: 2006 BMW E60 520d SE 6MT
Gone: 2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
My 328i initial thoughts + media!http://www.f30post.com/forums/showthread.php?t=712673
SomeRandomer123 is offline   England
0
Reply With Quote
      08-19-2012, 03:08 PM   #9
1.fresh.f30.335
Second Lieutenant
 
Drives: 2014 535xdrive M-Sport
Join Date: Apr 2012
Location: NH-CT

Posts: 286
iTrader: (0)

just did this on my 335 today. if you use a screwdriver you can easily pop the spring wire out of place and then zip tie the flap open. I will post some pics this week.
__________________
'12 335i Sport Apline White w/black... Totaled

'14 535i xdrive M-Sport Carbon Black w/Mocha Nappa
1.fresh.f30.335 is offline   United_States
0
Reply With Quote
      08-19-2012, 03:40 PM   #10
yjoonee
New Member
 
Drives: 2012 MW 328i Sedan
Join Date: May 2012
Location: OC

Posts: 13
iTrader: (0)

Quote:
Originally Posted by 1.fresh.f30.335 View Post
just did this on my 335 today. if you use a screwdriver you can easily pop the spring wire out of place and then zip tie the flap open. I will post some pics this week.
i wouldn't zip tie anything near the exhaust... use a paper clip instead?
yjoonee is offline   United_States
0
Reply With Quote
      08-19-2012, 04:28 PM   #11
1.fresh.f30.335
Second Lieutenant
 
Drives: 2014 535xdrive M-Sport
Join Date: Apr 2012
Location: NH-CT

Posts: 286
iTrader: (0)

Quote:
Originally Posted by yjoonee View Post
i wouldn't zip tie anything near the exhaust... use a paper clip instead?
zip tie isn't on the exhaust, its on the mount. I agree that a zip tie on the exhaust would be a problem. and a paper clip wouldn't be strong enough imo
__________________
'12 335i Sport Apline White w/black... Totaled

'14 535i xdrive M-Sport Carbon Black w/Mocha Nappa
1.fresh.f30.335 is offline   United_States
0
Reply With Quote
      08-20-2012, 04:36 AM   #12
steadymoddn504
Private
 
steadymoddn504's Avatar
 
Drives: F30 328i
Join Date: Aug 2012
Location: NorCal

Posts: 75
iTrader: (0)

Garage List
12 BMW 328i  [0.00]
1st mod and new to forum!

Just did this on my 328i and i also used zip ties. I only pried off the end of the U wire clip closest to the actuator and tied it down. dnt know if im supposed to unplug the actual wire thats connected on there also but for future references tying the clip in the up position opens the valve..correct me if im wrong or share your thoughts

make sure its real tight so it doesnt rattle. haven't gone for a test drive yet, but i will tomorrow n will be checking for faults/misc concerns and f/u if needed.
__________________


the only thing in this world that gives orders is balls. You got that? Balls.

Last edited by steadymoddn504; 08-23-2012 at 02:14 PM.
steadymoddn504 is offline   United_States
0
Reply With Quote
      08-20-2012, 10:07 AM   #13
BRN55
Private First Class
 
Drives: 2013 335i M Sport
Join Date: Jul 2012
Location: BR

Posts: 132
iTrader: (0)

Sound clips would be nice and maybe a DIY?
BRN55 is offline   Brazil
0
Reply With Quote
      08-20-2012, 01:40 PM   #14
scott@bmwhn
Major
 
Drives: Msport 328i
Join Date: Mar 2008
Location: Houston

Posts: 1,167
iTrader: (3)

I experimented with this but as stated it didnt seem to make much difference and if you dont secure the flap tight enough you'll get a horendous rattling

...interested to see what your "stage 2" is
__________________
13' Msport 328i _Mperformance - Modulare - H&R_

Previous: 09' Msport 335i, 07' Msport 335i
scott@bmwhn is offline  
0
Reply With Quote
      08-21-2012, 02:14 AM   #15
Number
 
Number's Avatar
 
Drives: ✚
Join Date: Feb 2012
Location: ✚ ✚

Posts: 1,146
iTrader: (1)

Quote:
Originally Posted by scott@bmwhn View Post
I experimented with this but as stated it didnt seem to make much difference and if you dont secure the flap tight enough you'll get a horendous rattling

...interested to see what your "stage 2" is
I experimented this on my 335i as well (I know this is the N20 thread). No perceptible sound difference at all. Much ado about nothing really. I put it back to stock.
Number is offline  
0
Reply With Quote
      09-28-2012, 07:24 PM   #16
pommes
New Member
 
Drives: F30 328i estoril blue
Join Date: Sep 2012
Location: Graz

Posts: 15
iTrader: (0)

My english is not the best (sorry), but i asked BMW Austria and the answear was

According to information from the competent colleagues with the silencer
Part number 18 30 2 293 769
during the fourth quarter of 2012, with each BMW partner ordered in Austria.

I hope you can also order the performance exhaust this year because the sound is not a 245 ps gasoline worthy
pommes is offline   Austria
0
Reply With Quote
      10-03-2012, 04:55 AM   #17
loz3rxfreak
Enlisted Member
 
loz3rxfreak's Avatar
 
Drives: 2012 328i
Join Date: Sep 2012
Location: United States

Posts: 38
iTrader: (1)

Quote:
Originally Posted by TJF30 View Post
Sound clips would be nice and maybe a DIY?
i would like to see the same if possible
loz3rxfreak is offline  
0
Reply With Quote
      10-08-2012, 05:47 PM   #18
edgarik
New Member
 
Drives: 328i Basic Auto
Join Date: Sep 2012
Location: Los angeles

Posts: 13
iTrader: (0)

Where is the actuator located? Can anyone give instructions? I have a 2012 328i
edgarik is offline   United_States
0
Reply With Quote
      12-03-2012, 04:10 PM   #19
david borla
New Member
 
david borla's Avatar
 
Drives: 2004 VW R32
Join Date: Sep 2011
Location: Oxnard, CA

Posts: 5
iTrader: (0)

We just started work on Borla aftermarket exhaust options for the F30 328i. If there are any specific ideas you guys would like to see us include in our designs please let me know. Can't promise that we'll do everything that is asked but we'll certainly do our best for you. I am certain we can improve the sound and may even offer more than one sound option.

For those of you who have disabled the exhaust valve, did this cause a CEL?
david borla is offline  
0
Reply With Quote
      12-03-2012, 04:48 PM   #20
unintelligible
Computer Janitor
 
unintelligible's Avatar
 
Drives: '12 F30 328i
Join Date: Nov 2011
Location: Florida

Posts: 216
iTrader: (0)

Quote:
Originally Posted by david borla View Post
For those of you who have disabled the exhaust valve, did this cause a CEL?
If you unplug the connector, it doesn't throw a CEL, but it does store a code... it came up using the BavTech scanner.
__________________
2012 328i Sport Line 6MT
Mineral Grey / Black Leather / Aluminum+Red Trim, Premium, Tech, Apps, HK, Assist, Adaptive Suspension, Xenons, Folding Seats
unintelligible is online now  
0
Reply With Quote
      12-03-2012, 07:15 PM   #21
Rick4345
Lieutenant
 
Rick4345's Avatar
 
Drives: 2012 328i Mineral Gray
Join Date: Apr 2009
Location: Illinois

Posts: 424
iTrader: (6)

Quote:
Originally Posted by david borla View Post
We just started work on Borla aftermarket exhaust options for the F30 328i. If there are any specific ideas you guys would like to see us include in our designs please let me know. Can't promise that we'll do everything that is asked but we'll certainly do our best for you. I am certain we can improve the sound and may even offer more than one sound option.

For those of you who have disabled the exhaust valve, did this cause a CEL?
The first thing would be to use the dual round rolled angle cut. I think a cat back system would work well. Another thought would be to ensure the mounting rods were just like the oem. I would also like to see all stainless with a lifetime guarantee. Magnaflow offers one on their system. I don't think the valve is a big issue. Just finding a place to tie the actuating motor to or having a mounting tab on the pipes would be nice. I had one of your systems on a 2004 Toyota Camry with the four cylinder. I loved it. I hope you make systems for the N20 and the N55 engines.

Last edited by Rick4345; 12-03-2012 at 07:17 PM. Reason: correction
Rick4345 is offline   United_States
0
Reply With Quote
      12-06-2012, 02:55 PM   #22
david borla
New Member
 
david borla's Avatar
 
Drives: 2004 VW R32
Join Date: Sep 2011
Location: Oxnard, CA

Posts: 5
iTrader: (0)

Thanks guys. Anything else please let me know.
david borla is offline  
0
Reply With Quote
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 02:28 PM.




f30post
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