E90Post
 


MINHS Auto Care Center
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > n55 Exhaust mods



Reply
 
Thread Tools Search this Thread
      07-08-2010, 09:11 AM   #1
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
n55 Exhaust mods

Has anyone done any mods to the stock n55 exhausts yet such as muffler/resonator/cat deletes or any combination. I am thinking about going down that path and was wondering if anyone got into doing it yet
Appreciate 0
      07-08-2010, 12:06 PM   #2
onefastman
Major General
72
Rep
5,698
Posts

 
Drives: 2009 135i 2011 e92m dct
Join Date: Sep 2009
Location: Earth

iTrader: (15)

No companies yet but you could just go and get one made.
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
Appreciate 0
      07-08-2010, 12:15 PM   #3
Army X5 S5
Lieutenant Colonel
Army X5 S5's Avatar
No_Country
18
Rep
1,752
Posts

 
Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

Silly Question, we all know the N54 has a total of 4 cats, how many does the N55 have? I know of 1 after the turbo, but what about 2nd cats?
__________________

BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review
Appreciate 0
      07-08-2010, 12:30 PM   #4
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
Quote:
Originally Posted by onefastman View Post
No companies yet but you could just go and get one made.
Yeah im not really looking to buy an exhaust im thinking more of like a resonator/cat delete
Appreciate 0
      07-08-2010, 12:36 PM   #5
shockin330i
Brigadier General
59
Rep
4,206
Posts

 
Drives: blue
Join Date: Jan 2007
Location: f y'all, I'm from Texas (RGV)

iTrader: (1)

Muffler delete is where its at...
__________________
ERnie 2011 AW/e90/n55 12.9@107.53mph
*N55 Moderator*
I'm crawling similar to a ant cuz I'm low to the earth
Appreciate 0
      07-08-2010, 12:38 PM   #6
ar design
ar design's Avatar
United_States
89
Rep
4,411
Posts

 
Drives: 04 M3
Join Date: Jan 2008
Location: Denver, CO

iTrader: (9)

Send a message via AIM to ar design
We are *still* looking for an N55 to develop products on!
Appreciate 0
      07-08-2010, 12:38 PM   #7
shockin330i
Brigadier General
59
Rep
4,206
Posts

 
Drives: blue
Join Date: Jan 2007
Location: f y'all, I'm from Texas (RGV)

iTrader: (1)

Quote:
Originally Posted by ar design View Post
We are *still* looking for an N55 to develop products on!
I'm up for a drive to colorado...
__________________
ERnie 2011 AW/e90/n55 12.9@107.53mph
*N55 Moderator*
I'm crawling similar to a ant cuz I'm low to the earth
Appreciate 0
      07-08-2010, 12:39 PM   #8
ar design
ar design's Avatar
United_States
89
Rep
4,411
Posts

 
Drives: 04 M3
Join Date: Jan 2008
Location: Denver, CO

iTrader: (9)

Send a message via AIM to ar design
Quote:
Originally Posted by shockin330i View Post
I'm up for a drive to colorado...
If you're serious, give me a call at the shop, 303 351 3515
Appreciate 0
      07-08-2010, 12:40 PM   #9
shockin330i
Brigadier General
59
Rep
4,206
Posts

 
Drives: blue
Join Date: Jan 2007
Location: f y'all, I'm from Texas (RGV)

iTrader: (1)

I have the whole last week of July off. I'm sure if I left friday I could get there by Saturday.
__________________
ERnie 2011 AW/e90/n55 12.9@107.53mph
*N55 Moderator*
I'm crawling similar to a ant cuz I'm low to the earth
Appreciate 0
      07-08-2010, 07:34 PM   #10
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
Anyone have a pic from underneath of the whole exhaust system with the plastic panels removed ?
Appreciate 0
      07-09-2010, 10:43 AM   #11
ciomas
Captain
ciomas's Avatar
Poland
11
Rep
671
Posts

 
Drives: M4
Join Date: Feb 2010
Location: 3city PL

iTrader: (0)

I do, just came back from Birds today ;]

enjoy
Attached Images
    
Appreciate 0
      07-09-2010, 10:53 AM   #12
Army X5 S5
Lieutenant Colonel
Army X5 S5's Avatar
No_Country
18
Rep
1,752
Posts

 
Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

Ciomas, I can't really tell, but is their only 1 Cat on the N55? I don't see any others on the exhaust system...
__________________

BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review
Appreciate 0
      07-09-2010, 11:04 AM   #13
ciomas
Captain
ciomas's Avatar
Poland
11
Rep
671
Posts

 
Drives: M4
Join Date: Feb 2010
Location: 3city PL

iTrader: (0)

there is definitely one on the downpipe, and I would assume there should be 2 additional ones on each side of the exhaust pipes
Appreciate 0
      07-09-2010, 11:23 AM   #14
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
Thats for the e92 on the sedans i can see two what seem to be smaller secondary cats right before that small crossover but im not sure about a primary one on the downpipe ...
Appreciate 0
      07-09-2010, 11:25 AM   #15
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
Theres really no giant resonator like the older e90's ... I was planning on doing a res delete but by seeing this there really is no point bc its so small ... any ideas ?
Appreciate 0
      07-09-2010, 11:42 AM   #16
Army X5 S5
Lieutenant Colonel
Army X5 S5's Avatar
No_Country
18
Rep
1,752
Posts

 
Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

So we are looking at a total of 3 Cats? 1 on the DP, 2 on the exhaust... Ryan, if anything you may want to do a Cat Delete, or get some HFC's to replace the 2nd cats, if your worried about emissions. I know when I get my N55 X5, i most likely will replace the 2nd Cats with HFC's, probably 2-300 cell count... My question is what is the cell count on the 2nd cats? Are they 600 like the N54 cats?
__________________

BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review
Appreciate 0
      07-09-2010, 11:47 AM   #17
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
Yeah i guess if theres a primary cat on the downpipe the cat delete is the way to go... Im guessing its the 600 cell count because from what I can see they are the exact same size at the two secondary cats on the n54 exhaust systems ...
Appreciate 0
      07-09-2010, 11:56 AM   #18
Army X5 S5
Lieutenant Colonel
Army X5 S5's Avatar
No_Country
18
Rep
1,752
Posts

 
Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

If they are the same size, then they are most likely 600 cells... The N54 had a total of 2400 (between the 4 Cats). Does the N55 only have 1800? I'm curious to know what the count is on the main Downpipe Cat. I know i've read that the main cat is larger than what is on the N54, so by that reasoning, It's gotta be a pretty high cell count. I'm probably going to swap my OEM cats back onto my 335 and put the HFC's on the X5 when I get it... It's funny though, that they went with a dual exhaust setup on the N55 considering that it's only one Catted Downpipe coming from the Turbo (split into two outlets) Maybe a Single Exhaust Setup would have been better... IDK
__________________

BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review
Appreciate 0
      07-09-2010, 12:00 PM   #19
Ron1n
Speed Demon
Ron1n's Avatar
United_States
58
Rep
3,248
Posts

 
Drives: '10 335d E90
Join Date: Oct 2009
Location: The 858

iTrader: (4)

Garage List
2010 335d  [5.00]
Quote:
Originally Posted by ar design View Post
We are *still* looking for an N55 to develop products on!
How about a 335d? :P
__________________
Appreciate 0
      07-09-2010, 12:08 PM   #20
RyanMv4
First Lieutenant
8
Rep
316
Posts

 
Drives: 2011 335XI
Join Date: Jun 2010
Location: PA

iTrader: (2)

Garage List
2011 BMW 335xi  [0.00]
Heres a quick pic i just snapped of the two cats on the sedan ...
Appreciate 0
      07-09-2010, 12:12 PM   #21
ar design
ar design's Avatar
United_States
89
Rep
4,411
Posts

 
Drives: 04 M3
Join Date: Jan 2008
Location: Denver, CO

iTrader: (9)

Send a message via AIM to ar design
Quote:
Originally Posted by Ron1n View Post
How about a 335d? :P
Absolutely!
Appreciate 0
      07-09-2010, 12:20 PM   #22
Army X5 S5
Lieutenant Colonel
Army X5 S5's Avatar
No_Country
18
Rep
1,752
Posts

 
Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

Quote:
Originally Posted by RyanMv4 View Post
Heres a quick pic i just snapped of the two cats on the sedan ...
Yeah, those bad boys are 600's...
__________________

BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review
Appreciate 0
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 08:26 PM.




e90post
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