BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Engine / Drivetrain / Exhaust / Bolt-ons

Post Reply
 
Thread Tools Search this Thread
      06-30-2014, 12:05 PM   #1
Dackelone
Moderator
Dackelone's Avatar
Germany
692
Rep
16,680
Posts

 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Arrow F80 M3 / F82 M4 exhaust resonator delete and straight pipes

So a friend of mine took delivery of his brand new M4 last week. He did not have it but a few days before the mod'ing has begun!

He had a friend, he goes by the name: New Fiftyninefifty on FB: cut open the factory resonators and welded in, a straight pipe - bypassing the factory resonator - but maintaining a factory "look"! It's a pretty stealth look.

IF anyone lives in Germany and wants to have this relatively cheap mod done... just send me a PM and I will get you in touch with the welder(Nurnberg area) guru.

The car's exhaust flaps are also controlled via a switch in the drivers cockpit. Now you can have the exhaust flaps bypass the muffler when NOT in Sport or Sport+ modes.


Name:  10509569_551582091613046_4535058481503271039_n.jpg
Views: 19820
Size:  96.8 KB

Name:  10353025_551582048279717_467071392854568802_n.jpg
Views: 19778
Size:  68.6 KB

Name:  10462625_551582124946376_4638754280840297300_n.jpg
Views: 19487
Size:  89.1 KB

Name:  10479146_652794754799116_7711079670051370255_o.jpg
Views: 19442
Size:  109.6 KB

Name:  10354067_551582024946386_6433706738723505329_n.jpg
Views: 19303
Size:  172.0 KB

videos after mid pipe delete... keep in mind the exhaust has zero miles on it and will surely change tone(deeper) once the exhaust carbons up some more...

Flaps open vs. flaps closed...


Appreciate 0
      06-30-2014, 01:34 PM   #2
jc1654M4
Second Lieutenant
United_States
2
Rep
221
Posts

 
Drives: 2015 Black M4
Join Date: Feb 2014
Location: miami,fl

iTrader: (0)

How does it sound inside the cabin ? Does the active sound make it really loud inside ? Sounds
Great btw a bit louder which is nice
Appreciate 0
      06-30-2014, 02:17 PM   #3
jackkk
Lieutenant
jackkk's Avatar
Russian Federation
10
Rep
400
Posts

 
Drives: VO 1///M
Join Date: Nov 2012
Location: Moscow

iTrader: (0)

Yo'd better delete the cats from the mid pipes.
__________________
F80 M3 SO/SO
1M VO FBO (KW DDC) PTF st.2+ sold
e90 335i FBO jb4 sold
Appreciate 0
      06-30-2014, 02:57 PM   #4
Dackelone
Moderator
Dackelone's Avatar
Germany
692
Rep
16,680
Posts

 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Quote:
Originally Posted by jc1654M4 View Post
How does it sound inside the cabin ? Does the active sound make it really loud inside ? Sounds
Great btw a bit louder which is nice
I added a new video. The owner really likes the sound inside and out!
Appreciate 0
      06-30-2014, 03:00 PM   #5
Dackelone
Moderator
Dackelone's Avatar
Germany
692
Rep
16,680
Posts

 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Quote:
Do the resonators contain the flaps?
No the resonators do not have any flaps. The flaps are at the rear of the muffler. They are controlled electrically. But now the owner has wired in a special switch to activate those flaps when he chooses.


totally stock car with only switching the flaps on and off...
Appreciate 0
      06-30-2014, 03:23 PM   #6
StealYourFace
Major
United_States
16
Rep
1,190
Posts

 
Drives: 2006 330i sport
Join Date: Jul 2009
Location: Shakedown Street, Buffalo NY

iTrader: (1)

Interesting!

There is a crossover pipe inside that resonator though isn't there?
__________________
330i ~ BMW Perf. Susp. ~ M3 Front susp ~ BMW Perf Exhaust ~ 3.38 lsd ~ SF71 Alf CSL reps ~ Pilot Super Sports ~ AA Tune ~ 335is front brakes ~ over 150,000 miles hardly broken in! WTB: e93 M3 Front Sway Bar
Appreciate 0
      06-30-2014, 06:07 PM   #7
spool twice
Rainbow Racer
spool twice's Avatar
United_States
18
Rep
1,280
Posts

 
Drives: S65B40
Join Date: Sep 2010
Location: Sarasota, FL

iTrader: (7)

Sounds great. Why no crossover pipe though?
__________________
'15 IS350 F-sport Ultra White/Rioja Red
'09 E90 M3 7-DCT Interlagos Blue/Novillo Silver
[MS Pullies|K&N drop-in|Test Pipes |Evolve Stage II tune|Evolve Servotronic Map|Evolve M3 GTS-DCT file]
Now gone
Appreciate 0
      07-01-2014, 06:26 AM   #8
BMWJ
First Lieutenant
8
Rep
385
Posts

 
Drives: 2011 E92 M3
Join Date: Oct 2011
Location: NY

iTrader: (0)

Quote:
Originally Posted by jackkk View Post
Yo'd better delete the cats from the mid pipes.
agreed - this not the resonators in my experience
Appreciate 0
      07-01-2014, 06:31 AM   #9
jackkk
Lieutenant
jackkk's Avatar
Russian Federation
10
Rep
400
Posts

 
Drives: VO 1///M
Join Date: Nov 2012
Location: Moscow

iTrader: (0)

Quote:
Originally Posted by BMWJ View Post
agreed - this not the resonators in my experience
I changed the mid cats for the resonators and it also looked steath but the pipe was more straight and it was no resonation sound. I liked it. But deleting the resonator it seems strange for me. No power gane but more beer can sound.
__________________
F80 M3 SO/SO
1M VO FBO (KW DDC) PTF st.2+ sold
e90 335i FBO jb4 sold
Appreciate 0
      07-01-2014, 08:28 AM   #10
BMWJ
First Lieutenant
8
Rep
385
Posts

 
Drives: 2011 E92 M3
Join Date: Oct 2011
Location: NY

iTrader: (0)

Quote:
Originally Posted by jackkk View Post
I changed the mid cats for the resonators and it also looked steath but the pipe was more straight and it was no resonation sound. I liked it. But deleting the resonator it seems strange for me. No power gane but more beer can sound.
yes resonators = good
cats = bad
Appreciate 0
      07-01-2014, 11:37 AM   #11
W///
Major General
W///'s Avatar
84
Rep
5,397
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Any more info on this switch? I honestly was quite happy with the sound of the car stock. I'd probably just leave it on Sport+ (the sound anyway) and call it a day.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      07-01-2014, 02:01 PM   #12
Dackelone
Moderator
Dackelone's Avatar
Germany
692
Rep
16,680
Posts

 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Quote:
Originally Posted by W/// View Post
Any more info on this switch? I honestly was quite happy with the sound of the car stock. I'd probably just leave it on Sport+ (the sound anyway) and call it a day.
The switch just breaks the ground contact for the two exhaust valves in the end muffler. Its relatively easy to install. This was you can have the deep loud bark of the exhaust(like when in Sport or Sport+) but also when you want to drive in comfort mode(or any other modes).
Appreciate 0
      07-01-2014, 03:31 PM   #13
Dackelone
Moderator
Dackelone's Avatar
Germany
692
Rep
16,680
Posts

 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Here is another friend's N55 135i that New Fiftyninefifty did a muffler delete(ala M3 style). He cut open the factory muffler and bypassed the perforated internal exhaust pipes. It sounds AWESOME!



Here is the exhaust mod on an e9x N54 335i...
Name:  exhaust   335i Exhaust Mod   1466209_461401013964488_464256816_n.jpg
Views: 19109
Size:  140.1 KB
Name:  inked exhaust   10367126_553032311468024_3334211551815368829_n.jpg
Views: 18977
Size:  145.2 KB
Appreciate 0
      07-01-2014, 03:35 PM   #14
parky1215
Lieutenant Colonel
parky1215's Avatar
United_States
35
Rep
1,510
Posts

 
Drives: Lucy, F80 M3
Join Date: Nov 2010
Location: Claremont, CA

iTrader: (11)

Quote:
Originally Posted by Dackelone View Post
The switch just breaks the ground contact for the two exhaust valves in the end muffler. Its relatively easy to install. This was you can have the deep loud bark of the exhaust(like when in Sport or Sport+) but also when you want to drive in comfort mode(or any other modes).
I would like to see some kind of easy to install adapter that goes between exhaust flap housing and valve cable connectors to make it always keep exhaust flap open.
I guess this would be pretty simple to make and mass produce.
Appreciate 0
      07-01-2014, 03:52 PM   #15
Sinister_1
Lieutenant
Sinister_1's Avatar
Germany
7
Rep
470
Posts

 
Drives: 2012 135i Msport 6MT SGM
Join Date: Nov 2013
Location: Grafenwohr Germany

iTrader: (0)

Garage List
2012 BMW 135i  [0.00]
dackelone thanks for the addition in this thread. Thats my 135i in the video. I can vouch for the quality of newfiftyninefifty #inkedexhaust. He does amazing work. If your interested in this mod do it.
Appreciate 1
      07-01-2014, 05:05 PM   #16
kitw
Colonel
kitw's Avatar
61
Rep
2,631
Posts

 
Drives: 2015 MW M3/2014 Boxster S
Join Date: Jun 2007
Location: Bay Area, CA

iTrader: (14)

Quote:
Originally Posted by Dackelone View Post
The switch just breaks the ground contact for the two exhaust valves in the end muffler. Its relatively easy to install. This was you can have the deep loud bark of the exhaust(like when in Sport or Sport+) but also when you want to drive in comfort mode(or any other modes).
Do they default open at idle? What's the stock behavior? (I could crawl under the car and look I guess
Appreciate 0
      07-02-2014, 02:28 AM   #17
GregD
Captain
Belgium
15
Rep
697
Posts

 
Drives: all day long..
Join Date: Jan 2012
Location: Antwerp

iTrader: (0)

Why no x-pipe instead of simply replacing the perforated tubes? You can open the top and install x-pipe for even better sound over these tubes. Still maintaining same stealth appearence from below!
Appreciate 0
      07-02-2014, 06:24 PM   #18
W Cole
Captain
14
Rep
785
Posts

 
Drives: 2009 M3
Join Date: Dec 2010
Location: Newport Coast, CA

iTrader: (5)

Quote:
Originally Posted by Dackelone View Post
The switch just breaks the ground contact for the two exhaust valves in the end muffler. Its relatively easy to install. This was you can have the deep loud bark of the exhaust(like when in Sport or Sport+) but also when you want to drive in comfort mode(or any other modes).
Im confused - I thought unplugging the valves would mean they stay closed. But you are saying breaking the ground opens the valves??
Appreciate 0
      07-02-2014, 06:45 PM   #19
Dackelone
Moderator
Dackelone's Avatar
Germany
692
Rep
16,680
Posts

 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

iTrader: (1)

Quote:
Originally Posted by W Cole View Post
Im confused - I thought unplugging the valves would mean they stay closed. But you are saying breaking the ground opens the valves??
That is my understanding(I think he even says it in my short video). I will double check and ask my buddy with this S.O. M4.
Appreciate 0
      07-02-2014, 06:51 PM   #20
makasu
New Member
0
Rep
7
Posts

 
Drives: 335i
Join Date: Oct 2011
Location: Toronto

iTrader: (0)

I have unplugged it under the car and it completely closes the valves.
Appreciate 0
      07-02-2014, 07:10 PM   #21
BuLoOoSki
Major
BuLoOoSki's Avatar
United_States
18
Rep
1,054
Posts

 
Drives: 2015 BMW M3
Join Date: Oct 2007
Location: Nashville, TN

iTrader: (8)

To each his own, but it sounds too raspy. If anything this car needs a mod that makes the exhaust tone deeper and throatier. This mod IMO just made it sound worse.
__________________
2015 BMW M3: Mineral White / SO Full Leather / Executive Pkg / Lighting Pkg / 19" Black Wheels / Adaptive Suspension / Double-Clutch Transmission / Harman Kardon
2007 BMW 335i Coupe (SOLD): BMS JB3 / Quaife LSD / RR Catless DPs / Helix Intercooler / VK Motorwerks Oil Cooler / AFE Intake / STETT Charge Pipe / Forge DVs
Appreciate 0
      07-02-2014, 08:44 PM   #22
Alex07M3
Colonel
26
Rep
2,128
Posts

 
Drives: E92 M3, Evo X MR, A4 Allroad
Join Date: Jan 2012
Location: Gatineau

iTrader: (1)

Quote:
Originally Posted by Dackelone
Here is another friend's N55 135i that New Fiftyninefifty did a muffler delete(ala M3 style). He cut open the factory muffler and bypassed the perforated internal exhaust pipes. It sounds AWESOME!



Here is the exhaust mod on an e9x N54 335i...
Attachment 1052146
Attachment 1052157
Why does that 135i with exhaust mod sound better then an M4 with Akrapovic!?! :
__________________
ESS VT1, M Performance exhaust, Turner test pipes, KW V3s, Michelin PSS 255/295
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
Forum Jump


All times are GMT -5. The time now is 07:49 PM.




f80post
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