Bimmerpost
3
/
4 Series
BMW Garage BMW Meets Register Today's Posts
Technical Topics B48 4-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications Keeping the exhaust valve open?

Post Reply
 
Thread Tools Search this Thread
      12-09-2019, 11:36 PM   #1
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Question Keeping the exhaust valve open?

Hey all!

Is there anyway to keep the exhaust always open while not needing to be in manual sport mode? The right exhaust only opens after driving around a while in manual sport mode or being in park/ neutral also in sport mode.

I would love to drive around while being in comfort mode with the exhaust open.
I have seen people unplug the exhaust valve plug on previous generations while the exhaust is open to prevent it from closing after pulling out the plug.

UPDATE : For those wondering how it sounds, its a bit louder in both Eco/comfort modes ( sounds the same in both modes ), though you still only get the pops in sport mode.

Feels great to always have the pops in sport mode without having to be in manual and having to go past a certain RPM to keep the flap open. I've noticed before this mod that if I drove in sport mode & manual that doing lots of down shifting would lead to the flap opening, however if I stop doing that for even under a minute the flap would close again.

Procedure : Start the engine, wait a bit and while in Park switch to sport mode and you should hear the flap open. While engine is on ( as I believe while the engine is off the flap closes) go to the rear right bottom of the car to unplug the plug. There should be a little tab to push in in order to get the plug to come out. Pulling the plug really hard won't do anything until you push the little tab to loosen the whole plug. Tape it up and I would suggest zip tying the whole connector along the valve switch.

similar to what we're doing however on the G20 it's on the right exhaust and also having the car off doesn't have the flap open.

Attached images show before and after.
For the connector I taped it up and zip tied it to the bracket. And also taped up the plug and put a zip tied around it to make sure the tape stayed on there and as some more protection.
Attached Images
  

Last edited by chunll2001; 12-11-2019 at 10:44 PM..
Appreciate 0
      12-10-2019, 12:17 AM   #2
chenry
Colonel
United_States
2398
Rep
2,958
Posts

Drives: BMWs
Join Date: Feb 2012
Location: SoCal Huntington Beach

iTrader: (8)

Quote:
Originally Posted by chunll2001 View Post
I have seen people unplug the exhaust valve plug on previous generations while the exhaust is open to prevent it from closing after pulling out the plug.
I am under the impression that is still an option for you - was another thread on this quite recently
Appreciate 1
Mark_R10.50
      12-10-2019, 12:47 AM   #3
premier3is
Major
premier3is's Avatar
1650
Rep
1,011
Posts

Drives: 2019 BMW 330i M-Sport
Join Date: Jul 2019
Location: CA

iTrader: (0)

Would love to know as well. I was just thinking another this a few days ago since a buddy of mines did this on his E92 by pulling a fuse I believe.
Appreciate 0
      12-11-2019, 04:09 AM   #4
areoqs
Registered
3
Rep
3
Posts

Drives: G21
Join Date: Dec 2019
Location: Poland

iTrader: (0)

Guys, i picked my G21 330i last friday. Is exhaust after 7.2019 (new dB regulations) quiter only by software or also OPF affects the tone of exhaust? My car sounds like shit. I drove dealer car on may and i love it on sport/sport+
Appreciate 0
      12-11-2019, 04:53 PM   #5
JohnBarny
Private
12
Rep
82
Posts

Drives: BMW F36 420d + G21 330i
Join Date: Aug 2019
Location: Leeds

iTrader: (0)

Quote:
Originally Posted by areoqs View Post
Guys, i picked my G21 330i last friday. Is exhaust after 7.2019 (new dB regulations) quiter only by software or also OPF affects the tone of exhaust? My car sounds like shit. I drove dealer car on may and i love it on sport/sport+
I have the same mate, my mates July 330i sounds ace but my October build 330i sounds shit no burbles either
Appreciate 0
      12-11-2019, 05:16 PM   #6
dejansokolovski
Private
84
Rep
60
Posts

Drives: BMW 330e G20, BMW 520D F11
Join Date: Jul 2019
Location: Borĺs, Sweden

iTrader: (0)

Quote:
Originally Posted by JohnBarny View Post
I have the same mate, my mates July 330i sounds ace but my October build 330i sounds shit no burbles either
It's the same here, mine is July build however I think.. But on the otherhand it's a 330e. That's why I thought BMW killed the burbles/pops et.c on purpose because it being a 330e, but maybe it then has to do with with when it was built rather than being a 330e vs 330i/320i et.c..

So it's all in the tune then I guess? I've changed rear muffler to a custom built and that didn't bring any burbles forward, just a bit louder.
Appreciate 0
      12-11-2019, 06:10 PM   #7
Preciseyyc
Private First Class
Preciseyyc's Avatar
Canada
163
Rep
170
Posts

Drives: F15 35i G20 m340
Join Date: Nov 2014
Location: Calgary Alberta

iTrader: (0)

Get it open in sport mode. Unplug valve. Tape end to
Protect it. Done
Appreciate 1
      12-11-2019, 10:16 PM   #8
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Quote:
Originally Posted by Preciseyyc View Post
Get it open in sport mode. Unplug valve. Tape end to
Protect it. Done
Just did it today too!, did you use electrical tape on both ends of the plugs? That's what I did today, though I feel like there need to be a better solution than just the tape. I see your location is in Canada so I'm assuming lots of snow? Do you think the tape is fine for the weather there?
Appreciate 0
      12-11-2019, 10:20 PM   #9
Preciseyyc
Private First Class
Preciseyyc's Avatar
Canada
163
Rep
170
Posts

Drives: F15 35i G20 m340
Join Date: Nov 2014
Location: Calgary Alberta

iTrader: (0)

Quote:
Originally Posted by chunll2001 View Post
Quote:
Originally Posted by Preciseyyc View Post
Get it open in sport mode. Unplug valve. Tape end to
Protect it. Done
Just did it today too!, did you use electrical tape on both ends of the plugs? That's what I did today, though I feel like there need to be a better solution than just the tape. I see your location is in Canada so I'm assuming lots of snow? Do you think the tape is fine for the weather there?
Nah just the male end then pushed it back into the valve connection
Appreciate 0
      12-11-2019, 10:47 PM   #10
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Quote:
Originally Posted by Preciseyyc View Post
Nah just the male end then pushed it back into the valve connection
So you put tape on the connector one and plugged it back in?
Little confused here
Appreciate 0
      12-11-2019, 10:49 PM   #11
Preciseyyc
Private First Class
Preciseyyc's Avatar
Canada
163
Rep
170
Posts

Drives: F15 35i G20 m340
Join Date: Nov 2014
Location: Calgary Alberta

iTrader: (0)

Quote:
Originally Posted by chunll2001 View Post
Quote:
Originally Posted by Preciseyyc View Post
Nah just the male end then pushed it back into the valve connection
So you put tape on the connector one and plugged it back in?
Little confused here
Yea exactly. Then its "in place"
But not making connection; protects both connections, did the same on my f32 and f15.
Appreciate 0
      12-11-2019, 11:10 PM   #12
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Quote:
Originally Posted by Preciseyyc View Post
Yea exactly. Then its "in place"
But not making connection; protects both connections, did the same on my f32 and f15.
Hmm I see now. But it doesn't really plug in correct? Both are just lined up together but taped between each other to prevent the plugs from being connected?
As in a piece of tape between the two plugs to prevent a connection from occurring if that makes it more clear.
Appreciate 0
      12-11-2019, 11:25 PM   #13
Preciseyyc
Private First Class
Preciseyyc's Avatar
Canada
163
Rep
170
Posts

Drives: F15 35i G20 m340
Join Date: Nov 2014
Location: Calgary Alberta

iTrader: (0)

Quote:
Originally Posted by chunll2001 View Post
Quote:
Originally Posted by Preciseyyc View Post
Yea exactly. Then its "in place"
But not making connection; protects both connections, did the same on my f32 and f15.
Hmm I see now. But it doesn't really plug in correct? Both are just lined up together but taped between each other to prevent the plugs from being connected?
As in a piece of tape between the two plugs to prevent a connection from occurring if that makes it more clear.
Yea I wrapped the male end with tape. It keeps it from connecting, but having it still together keeps the plugs protected
Appreciate 0
      12-11-2019, 11:29 PM   #14
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Quote:
Originally Posted by Preciseyyc View Post
Yea I wrapped the male end with tape. It keeps it from connecting, but having it still together keeps the plugs protected
Ah I see now. Might do the same later on.
Currently its the same as yours but just not " together" with the connector being zip tied to the bracket while still covered up.

Thanks for the tip!
Appreciate 0
      12-11-2019, 11:31 PM   #15
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1969
Rep
3,518
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Noob question. How do you unplug the connector? Does the car have to be raised on lifts? Are there any errors/CELs on the dashboard/MMI?
Appreciate 0
      12-11-2019, 11:36 PM   #16
Preciseyyc
Private First Class
Preciseyyc's Avatar
Canada
163
Rep
170
Posts

Drives: F15 35i G20 m340
Join Date: Nov 2014
Location: Calgary Alberta

iTrader: (0)

Quote:
Originally Posted by chunll2001 View Post
Quote:
Originally Posted by Preciseyyc View Post
Yea I wrapped the male end with tape. It keeps it from connecting, but having it still together keeps the plugs protected
Ah I see now. Might do the same later on.
Currently its the same as yours but just not " together" with the connector being zip tied to the bracket while still covered up.

Thanks for the tip!
Exactly. No worries.


Quote:
Originally Posted by VipinLJ View Post
Noob question. How do you unplug the connector? Does the car have to be raised on lifts? Are there any errors/CELs on the dashboard/MMI?

No errors, shadow codes if you check codes. But no CEL or anything else.
Just start the car, get it in sport mode, wait for valve to open. Lay under it squeeze the release tab and pull it out.
Or loosen the plug before starting it if you're worried about exhaust in your face
Appreciate 2
VipinLJ1969.00
      12-11-2019, 11:58 PM   #17
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Quote:
Originally Posted by VipinLJ View Post
Noob question. How do you unplug the connector? Does the car have to be raised on lifts? Are there any errors/CELs on the dashboard/MMI?
It was a bit hard for me to find the “ tab” to push for the connector to slide right out so I put my car on a lift and it became so much easier as I wasn’t laying on the floor haha. No errors on the dashboard. It was like it never even happened.
Appreciate 2
VipinLJ1969.00
      12-12-2019, 12:18 AM   #18
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1969
Rep
3,518
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by Preciseyyc View Post
No errors, shadow codes if you check codes. But no CEL or anything else.
Just start the car, get it in sport mode, wait for valve to open. Lay under it squeeze the release tab and pull it out.
Or loosen the plug before starting it if you're worried about exhaust in your face
Quote:
Originally Posted by chunll2001 View Post
It was a bit hard for me to find the “ tab” to push for the connector to slide right out so I put my car on a lift and it became so much easier as I wasn’t laying on the floor haha. No errors on the dashboard. It was like it never even happened.
Thank you so much guys. I’ll have to wait till I go to my cousins house where his driveway has a defect that makes it act like a built in jack. I’m claustrophobic so that doesn’t help
Appreciate 0
      12-12-2019, 12:20 AM   #19
Preciseyyc
Private First Class
Preciseyyc's Avatar
Canada
163
Rep
170
Posts

Drives: F15 35i G20 m340
Join Date: Nov 2014
Location: Calgary Alberta

iTrader: (0)

Quote:
Originally Posted by VipinLJ View Post
Quote:
Originally Posted by Preciseyyc View Post
No errors, shadow codes if you check codes. But no CEL or anything else.
Just start the car, get it in sport mode, wait for valve to open. Lay under it squeeze the release tab and pull it out.
Or loosen the plug before starting it if you're worried about exhaust in your face
Quote:
Originally Posted by chunll2001 View Post
It was a bit hard for me to find the “ tab” to push for the connector to slide right out so I put my car on a lift and it became so much easier as I wasn’t laying on the floor haha. No errors on the dashboard. It was like it never even happened.
Thank you so much guys. I’ll have to wait till I go to my cousins house where his driveway has a defect that makes it act like a built in jack. I’m claustrophobic so that doesn’t help
It's right at the back dont even need to be under the car it's 2" back from the tips you'll see it right away, just reach up and it's there literally took me a minute including taping the plug end off
Appreciate 1
VipinLJ1969.00
      12-12-2019, 12:56 AM   #20
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1969
Rep
3,518
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by Preciseyyc View Post
It's right at the back dont even need to be under the car it's 2" back from the tips you'll see it right away, just reach up and it's there literally took me a minute including taping the plug end off
Thank you once again. Looks like it’s going to be warmer here tomorrow and it’ll be the perfect time to do it then.
Appreciate 1
      12-12-2019, 08:54 AM   #21
areoqs
Registered
3
Rep
3
Posts

Drives: G21
Join Date: Dec 2019
Location: Poland

iTrader: (0)

It works for me. Latest software, no errors - but no burbles.
Appreciate 0
      12-12-2019, 08:57 AM   #22
chunll2001
Private First Class
chunll2001's Avatar
United_States
79
Rep
186
Posts

Drives: 2018 M5, M3 ZCP, M3 CS
Join Date: Dec 2019
Location: NYC

iTrader: (2)

Garage List
2021 BMW G80   [0.00]
2018 F80 ZCP  [0.00]
2018 BMW M3 CS  [0.00]
2018 BMW M5  [0.00]
Quote:
Originally Posted by areoqs View Post
It works for me. Latest software, no errors - but no burbles.
You have the touring model correct? Saw a thread where many don't the burbles at all even in sport mode on the touring model. That really sucks. Do you think you would reconsider buying the car if you knew it didn't have any burbles and pops?
Appreciate 0
Post Reply

Bookmarks

Tags
exhaust, valve


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 10:48 AM.




g20
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