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

Posts: 15,759
iTrader: (1)

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

BIMMERPOST
     Featured on BIMMERPOST.com
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: 17951
Size:  96.8 KB

Name:  10353025_551582048279717_467071392854568802_n.jpg
Views: 17876
Size:  68.6 KB

Name:  10462625_551582124946376_4638754280840297300_n.jpg
Views: 17853
Size:  89.1 KB

Name:  10479146_652794754799116_7711079670051370255_o.jpg
Views: 17831
Size:  109.6 KB

Name:  10354067_551582024946386_6433706738723505329_n.jpg
Views: 17689
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...


Dackelone is offline   Germany
0
Reply With Quote
      06-30-2014, 01:34 PM   #2
jc1654M4
Private
 
Drives: 2012 dodge charger srt8
Join Date: Feb 2014
Location: miami,fl

Posts: 88
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
jc1654M4 is online now  
0
Reply With Quote
      06-30-2014, 02:17 PM   #3
jackkk
Second Lieutenant
 
jackkk's Avatar
 
Drives: VO 1///M
Join Date: Nov 2012
Location: Moscow

Posts: 242
iTrader: (0)

Yo'd better delete the cats from the mid pipes.
__________________
Waiting for the F80 M3 SO/SO
1M VO FBO (KW DDC) PTF st.2+ sold
e90 335i FBO jb4 sold
jackkk is offline   Russian Federation
0
Reply With Quote
      06-30-2014, 02:57 PM   #4
Dackelone
Moderator
 
Dackelone's Avatar
 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

Posts: 15,759
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!
Dackelone is offline   Germany
0
Reply With Quote
      06-30-2014, 03:00 PM   #5
Dackelone
Moderator
 
Dackelone's Avatar
 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

Posts: 15,759
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...
Dackelone is offline   Germany
0
Reply With Quote
      06-30-2014, 03:23 PM   #6
StealYourFace
Major
 
Drives: 2006 330i sport
Join Date: Jul 2009
Location: Shakedown Street, Buffalo NY

Posts: 1,043
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 WTB: e93 M3 Front Sway Bar
StealYourFace is offline   United_States
0
Reply With Quote
      06-30-2014, 06:07 PM   #7
spool twice
Rainbow Racer
 
spool twice's Avatar
 
Drives: S65B40
Join Date: Sep 2010
Location: Sarasota, FL

Posts: 1,230
iTrader: (7)

Sounds great. Why no crossover pipe though?
__________________
E90 LCI 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]
spool twice is offline   United_States
0
Reply With Quote
      07-01-2014, 06:26 AM   #8
BMWJ
Second Lieutenant
 
Drives: 2011 E92 M3
Join Date: Oct 2011
Location: NY

Posts: 287
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
BMWJ is offline  
0
Reply With Quote
      07-01-2014, 06:31 AM   #9
jackkk
Second Lieutenant
 
jackkk's Avatar
 
Drives: VO 1///M
Join Date: Nov 2012
Location: Moscow

Posts: 242
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.
__________________
Waiting for the F80 M3 SO/SO
1M VO FBO (KW DDC) PTF st.2+ sold
e90 335i FBO jb4 sold
jackkk is offline   Russian Federation
0
Reply With Quote
      07-01-2014, 08:28 AM   #10
BMWJ
Second Lieutenant
 
Drives: 2011 E92 M3
Join Date: Oct 2011
Location: NY

Posts: 287
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
BMWJ is offline  
0
Reply With Quote
      07-01-2014, 11:37 AM   #11
W///
Brigadier General
 
W///'s Avatar
 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

Posts: 4,444
iTrader: (11)

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 | Eisenmann | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
W/// is online now  
0
Reply With Quote
      07-01-2014, 02:01 PM   #12
Dackelone
Moderator
 
Dackelone's Avatar
 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

Posts: 15,759
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).
Dackelone is offline   Germany
0
Reply With Quote
      07-01-2014, 03:31 PM   #13
Dackelone
Moderator
 
Dackelone's Avatar
 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

Posts: 15,759
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: 17141
Size:  140.1 KB
Name:  inked exhaust   10367126_553032311468024_3334211551815368829_n.jpg
Views: 17091
Size:  145.2 KB
Dackelone is offline   Germany
0
Reply With Quote
      07-01-2014, 03:35 PM   #14
parky1215
Major
 
parky1215's Avatar
 
Drives: Dark Elsa's M3
Join Date: Nov 2010
Location: Claremont, CA

Posts: 1,072
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.
__________________
Triple Black F80 M3 Ordered from Steve Thomas BMW
Production Date: Complete
Dark Elsa is coming
parky1215 is online now   United_States
0
Reply With Quote
      07-01-2014, 03:52 PM   #15
Sinister_1
First Lieutenant
 
Sinister_1's Avatar
 
Drives: 2012 135i Msport 6MT SGM
Join Date: Nov 2013
Location: Grafenwohr Germany

Posts: 371
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.
Sinister_1 is offline   Germany
+1
Reply With Quote
      07-01-2014, 05:05 PM   #16
kitw
Colonel
 
kitw's Avatar
 
Drives: 2015 MW M3/2011 E90 M3
Join Date: Jun 2007
Location: Bay Area, CA

Posts: 2,338
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
kitw is offline  
0
Reply With Quote
      07-02-2014, 02:28 AM   #17
GregD
Lieutenant
 
GregD's Avatar
 
Drives: SO F80 M3
Join Date: Jan 2012
Location: Antwerp

Posts: 531
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!
GregD is online now   Belgium
0
Reply With Quote
      07-02-2014, 06:24 PM   #18
W Cole
Captain
 
Drives: 2009 M3
Join Date: Dec 2010
Location: Newport Coast, CA

Posts: 703
iTrader: (4)

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??
W Cole is offline  
0
Reply With Quote
      07-02-2014, 06:45 PM   #19
Dackelone
Moderator
 
Dackelone's Avatar
 
Drives: 135i Silber mit/Rot 6MT N54
Join Date: Feb 2010
Location: Bayern, Germany

Posts: 15,759
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.
Dackelone is offline   Germany
0
Reply With Quote
      07-02-2014, 06:51 PM   #20
makasu
New Member
 
Drives: 335i
Join Date: Oct 2011
Location: Toronto

Posts: 7
iTrader: (0)

I have unplugged it under the car and it completely closes the valves.
makasu is offline  
0
Reply With Quote
      07-02-2014, 07:10 PM   #21
BuLoOoSki
Major
 
BuLoOoSki's Avatar
 
Drives: 2013 Mercedes ML350
Join Date: Oct 2007
Location: Kuwait

Posts: 1,010
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 (Ordered): Mineral White / SO Full Merino Leather / Executive Package / Lighting Package / 19" Black Wheels / Adaptive M Suspension / M 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 / MFD Scoops / RR Oil Catch Can
BuLoOoSki is offline   Kuwait
0
Reply With Quote
      07-02-2014, 08:44 PM   #22
Alex07M3
Lieutenant Colonel
 
Drives: e92 m3
Join Date: Jan 2012
Location: Gatineau

Posts: 1,790
iTrader: (0)

Garage List
2008 e92 M3  [5.00]
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, Eibach, Michelin PSS 255/295
Alex07M3 is online now  
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 01:47 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