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 > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > 435s Muffler delete, back box delete, mufflerectomy
Extreme Powerhouse
Post Reply
 
Thread Tools Search this Thread
      08-12-2016, 04:06 AM   #1
Smee
Colonel
Smee's Avatar
505
Rep
2,152
Posts

Drives: BMW M4 F83
Join Date: Aug 2016
Location: Norfolk

iTrader: (0)

435s Muffler delete, back box delete, mufflerectomy

Has anyone done Muffler delete, back box delete, mufflerectomy to a 435d or 335d?

im interested if it sounds more meaty like it does on the 3.0 tdi audi's

and also if it drones etc

any help greatly appreciated
Appreciate 0
      09-01-2016, 03:43 PM   #2
Tommyj
Private First Class
30
Rep
120
Posts

Drives: F90 Competition & Boxster 718S
Join Date: May 2016
Location: Warwick

iTrader: (0)

Garage List
2019 X4M  [0.00]
2019 BMW XM  [0.00]
I haven't done it yet but I was looking under an Alpina D3 biturbo I the dealership last weekend and that runs a quad tailpipe exhaust with no back boxes. I've heard them on YouTube and they are still virtually silent. The exhaust is made by Akropovic
Appreciate 0
      09-06-2016, 07:01 AM   #3
Smee
Colonel
Smee's Avatar
505
Rep
2,152
Posts

Drives: BMW M4 F83
Join Date: Aug 2016
Location: Norfolk

iTrader: (0)

oh really i wanted it to be meaty like the 3.0 tdi from audi
Appreciate 0
      09-21-2016, 04:39 AM   #4
russellg
Private First Class
United Kingdom
23
Rep
105
Posts

Drives: BMW
Join Date: Jul 2015
Location: UK

iTrader: (0)

The Audi V6 TDi of 313bhp and above runs a speaker in the exhaust, that's why its sounds more 'meaty'. Its also a V6 rather than a straight 6 so there might be an audible note there too.

Think of whats in the SQ5 for example. It runs two 'active sound modules'. located close to the tail pipes.

Basically its like ASD that BMW use but the speaker is located outside the car.

VW GT TDis have them as an option too., much like the M Performance Active sound exhaust.
Appreciate 0
      09-21-2016, 04:43 AM   #5
Smee
Colonel
Smee's Avatar
505
Rep
2,152
Posts

Drives: BMW M4 F83
Join Date: Aug 2016
Location: Norfolk

iTrader: (0)

Here is a 3.0 tdi

https://www.youtube.com/shared?ci=P84AVtwX4as
Appreciate 0
      09-25-2016, 07:14 PM   #6
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

http://forumbilder.se/FB3DQ/img-8895

http://forumbilder.se/FB3DQ/img-8839

Mine. Dpf Gone and so on. Sounds like a real car now. Smokes like crazy though at full throttle. Asked them to tone down the exhaust. The dog is the thing doing the difference.
410 bhp, 800 nm
New intercoller, dpf off, air filter mod, exhaust mod, and custom ecu map

Last edited by Rondavouz; 09-25-2016 at 07:21 PM..
Appreciate 0
      09-26-2016, 08:39 AM   #7
Ajs_435d
Lieutenant Colonel
Ajs_435d's Avatar
355
Rep
1,846
Posts

Drives: 435d m sport m performance
Join Date: Jan 2014
Location: United Kingdom

iTrader: (0)

Quote:
Originally Posted by Rondavouz View Post
http://forumbilder.se/FB3DQ/img-8895

http://forumbilder.se/FB3DQ/img-8839

Mine. Dpf Gone and so on. Sounds like a real car now. Smokes like crazy though at full throttle. Asked them to tone down the exhaust. The dog is the thing doing the difference.
410 bhp, 800 nm
New intercoller, dpf off, air filter mod, exhaust mod, and custom ecu map
Interesting any figures purely just remap, then remap plus dpf removed.

Did yours smoke when pushed just remapped?

Thanks
Appreciate 0
      09-30-2016, 06:55 PM   #8
perzonal
Private First Class
36
Rep
138
Posts

Drives: BMW M2
Join Date: Aug 2013
Location: Sweden

iTrader: (0)

Garage List
2017 BMW M2  [0.00]
Quote:
Originally Posted by Rondavouz View Post
http://forumbilder.se/FB3DQ/img-8895

http://forumbilder.se/FB3DQ/img-8839

Mine. Dpf Gone and so on. Sounds like a real car now. Smokes like crazy though at full throttle. Asked them to tone down the exhaust. The dog is the thing doing the difference.
410 bhp, 800 nm
New intercoller, dpf off, air filter mod, exhaust mod, and custom ecu map
May I ask what kind of exhaust mod you did and where you got your ECU done?
Appreciate 0
      10-01-2016, 04:30 AM   #9
Smee
Colonel
Smee's Avatar
505
Rep
2,152
Posts

Drives: BMW M4 F83
Join Date: Aug 2016
Location: Norfolk

iTrader: (0)

Have you got a video of the noise?
Appreciate 0
      10-20-2016, 11:10 AM   #10
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

Quote:
Originally Posted by perzonal View Post
May I ask what kind of exhaust mod you did and where you got your ECU done?
ECU map custom at V-tech here in Sweden
They also did the DPF removal by cleaning out and original one.
Ferrita did the exhaust mod, stainless made muffler and so on.



Appreciate 0
      10-20-2016, 06:13 PM   #11
perzonal
Private First Class
36
Rep
138
Posts

Drives: BMW M2
Join Date: Aug 2013
Location: Sweden

iTrader: (0)

Garage List
2017 BMW M2  [0.00]
Awsome and congratulations! Do you feel any kind of weird resonance/drone going on because of the now emptied DPF box? I've understood it should be better with a good downpipe.

Any plans for a dyno?
Appreciate 0
      10-21-2016, 03:52 AM   #12
Smee
Colonel
Smee's Avatar
505
Rep
2,152
Posts

Drives: BMW M4 F83
Join Date: Aug 2016
Location: Norfolk

iTrader: (0)

This is all useless without videos so I can hear it
Appreciate 0
      10-21-2016, 07:08 AM   #13
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

Will fix. And also you can see the lovely black smoke.

No drag or anything since the back pressure has been adjusted.


Quote:
Originally Posted by Smee View Post
This is all useless without videos so I can hear it
Appreciate 0
      10-21-2016, 03:11 PM   #14
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

Here is a video of it.
It doesn't sound as well as when I drive.
Will make a video of that tomorrow.

https://youtu.be/wNhyF98vATw
Appreciate 0
      10-21-2016, 04:26 PM   #15
Ajs_435d
Lieutenant Colonel
Ajs_435d's Avatar
355
Rep
1,846
Posts

Drives: 435d m sport m performance
Join Date: Jan 2014
Location: United Kingdom

iTrader: (0)

How smoke is there and did it smoke pre DPF delete?

How much more power/torque did the DPF delete make ontop of the remap?

Thanks
Appreciate 0
      10-21-2016, 04:44 PM   #16
Rondavouz
Private First Class
110
Rep
99
Posts

Drives: Bmw M2
Join Date: Jul 2015
Location: Sweden

iTrader: (0)

No smoke before map.
Gave around 40 hp with new map and inter cooler.
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 03:18 PM.




f30post
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