E90Post
 


European Auto Source
 
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 downpipe



Reply
 
Thread Tools Search this Thread
      02-15-2011, 01:44 PM   #1
CPWINCH
Brigadier General
CPWINCH's Avatar
United_States
39
Rep
3,562
Posts

 
Drives: F32 4 Series
Join Date: May 2010
Location: Los Angeles

iTrader: (5)

N55 downpipe

Do catted aftermarket downpipes have the same gains as non-catted, if so wats the difference. And those running the non catted version on the N55 how is that rotten egg smell since there are no cats.
__________________
Follow my BMW instagram @Bmwmodification Let me know you are from bimmerpost and i'll follow back
Appreciate 0
      02-15-2011, 01:45 PM   #2
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
Catless always has more gains.

And we have em in stock!
Appreciate 0
      02-15-2011, 02:01 PM   #3
mineo77
Lieutenant Colonel
mineo77's Avatar
United_States
37
Rep
1,928
Posts

 
Drives: 2010 135i,1989 PRO3,2001 530i
Join Date: Aug 2009
Location: Portland,OR

iTrader: (2)

Garage List
2010 135i coupe  [3.78]
Send a message via AIM to mineo77
The smell isn't as bad as you would expect, not a rotten egg smell at all. I just notice more gas smell at times, not while driving with windows down.

What DP's are you looking at?

iCarbon or AR?
__________________
Appreciate 0
      02-15-2011, 02:37 PM   #4
AW135iTT
Private
1
Rep
94
Posts

 
Drives: 2011 E92 335i
Join Date: Jun 2008
Location: Boca Raton

iTrader: (0)

Quote:
Originally Posted by mineo77 View Post
The smell isn't as bad as you would expect, not a rotten egg smell at all. I just notice more gas smell at times, not while driving with windows down.

What DP's are you looking at?

iCarbon or AR?



+1

I got the icarbon catless ones and the smell isn't bad... Just smell like gas fumes at times and only when the windows are down.
Appreciate 0
      02-15-2011, 03:16 PM   #5
mineo77
Lieutenant Colonel
mineo77's Avatar
United_States
37
Rep
1,928
Posts

 
Drives: 2010 135i,1989 PRO3,2001 530i
Join Date: Aug 2009
Location: Portland,OR

iTrader: (2)

Garage List
2010 135i coupe  [3.78]
Send a message via AIM to mineo77
Quote:
Originally Posted by AW135iTT View Post
+1

I got the icarbon catless ones and the smell isn't bad... Just smell like gas fumes at times and only when the windows are down.
+1 for the iCarbon pipes!
__________________
Appreciate 0
      02-15-2011, 04:00 PM   #6
Dmacc
Colonel
57
Rep
2,653
Posts

 
Drives: 2010 135i
Join Date: Mar 2010
Location: Nor Cal

iTrader: (1)

The catless smell smells exactly like my '56 ford, it's not bothersome at all.
__________________

thanks to MGallop
Appreciate 0
      02-15-2011, 04:10 PM   #7
FDfranklin
d[-_-]b
FDfranklin's Avatar
24
Rep
780
Posts

 
Drives: 2011 LeMans Blue 135i
Join Date: Aug 2010
Location: Tampa, Fl

iTrader: (1)

Are your guys dealerships ok with downpipes?
__________________
Appreciate 0
      02-15-2011, 04:52 PM   #8
cn555ic
BimmerPost Supporting Vendor
cn555ic's Avatar
United_States
246
Rep
18,287
Posts


 
Drives: Bimmerscoding.com
Join Date: Jun 2007
Location: New York

iTrader: (5)

Send a message via Yahoo to cn555ic
The smell is really not bad at all, but most of us got use to it I guess!! The only time it smells like eggs is when the 02 sensors go bad, then its smells like the crack of ass!
__________________
917-939-4980 CODING E and F Series New York Area

Appreciate 0
      02-15-2011, 05:14 PM   #9
alexc93
Lieutenant Colonel
United_States
37
Rep
1,535
Posts

 
Drives: AW N55 135i
Join Date: Nov 2009
Location: FL

iTrader: (6)

Quote:
Originally Posted by FDfranklin View Post
Are your guys dealerships ok with downpipes?
yep, im in naples and germain bmw has absolutely no problem with it...saying that they are probably the coolest dealer ever. they tend to look over mods
__________________
2011 135i Alpine White/Coral Red || M-Sport Package || 6MT
|| 15% Tint || BMW Performance Grilles || BMW Performance Spoiler || iCarbon Diffusor || Alufelgen CS7 18" Silver ||
|| JB4 || BMS Downpipe || Active Autowerke Charge Pipe ||
Appreciate 0
      02-15-2011, 05:34 PM   #10
CPWINCH
Brigadier General
CPWINCH's Avatar
United_States
39
Rep
3,562
Posts

 
Drives: F32 4 Series
Join Date: May 2010
Location: Los Angeles

iTrader: (5)

dont know which i want both look incredible, when i see more results and reviews ill be sure to buy one tho
__________________
Follow my BMW instagram @Bmwmodification Let me know you are from bimmerpost and i'll follow back
Appreciate 0
      02-15-2011, 06:16 PM   #11
frank35
Private
1
Rep
81
Posts

 
Drives: 335I JB3 DCI
Join Date: Feb 2011
Location: SF

iTrader: (0)

Always better catless, the gases of leak will go out easier
Appreciate 0
      02-15-2011, 07:11 PM   #12
Pepe_pr
Lieutenant
Puerto Rico
7
Rep
534
Posts

 
Drives: 135i black on black
Join Date: Sep 2010
Location: San Juan PR

iTrader: (1)

it smells fast
__________________
USED TO HAVE A 385 whp 479 tq N55 335 2011 (AT) AND NOW A 135 M package 2010 (AT) 447whp/504tq
Appreciate 0
      02-15-2011, 07:26 PM   #13
mineo77
Lieutenant Colonel
mineo77's Avatar
United_States
37
Rep
1,928
Posts

 
Drives: 2010 135i,1989 PRO3,2001 530i
Join Date: Aug 2009
Location: Portland,OR

iTrader: (2)

Garage List
2010 135i coupe  [3.78]
Send a message via AIM to mineo77
Quote:
Originally Posted by FDfranklin View Post
Are your guys dealerships ok with downpipes?
my dealer is ok with anything except messing in the ECU.
__________________
Appreciate 0
      02-16-2011, 01:13 PM   #14
CPWINCH
Brigadier General
CPWINCH's Avatar
United_States
39
Rep
3,562
Posts

 
Drives: F32 4 Series
Join Date: May 2010
Location: Los Angeles

iTrader: (5)

Quote:
Originally Posted by Pepe_pr View Post
it smells fast
lol
__________________
Follow my BMW instagram @Bmwmodification Let me know you are from bimmerpost and i'll follow back
Appreciate 0
      02-16-2011, 05:35 PM   #15
Andrew@ET
Brigadier General
73
Rep
4,041
Posts

 
Drives: Red thing
Join Date: May 2007
Location: Earth

iTrader: (9)

You do smell it when at a light but only when you drive hard or you have wind blowing from behind.. Windows up I havent smelled it yet.

It not horrible but its a very noticable gas smell.

Like someone said it smells fast and I love it
Appreciate 0
      02-16-2011, 07:51 PM   #16
ciomas
Captain
ciomas's Avatar
Poland
11
Rep
671
Posts

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

iTrader: (0)

smell isnt bad at all. smells more serious ;P


oh, and AR FTMFW !!!
__________________
335 - Íhlins//Swift//M3 front suspension//M3 subframe bushes//Quaife LSD//AR Design Catless//Forge Intercooler//Alcon BBK//Goodridge//AFE//RPI//Fenders - SOLD
M4-Mineral Gray/Full Shakir Orange/DCT/M Ceramic/M Adaptive Susp.
Appreciate 0
      02-22-2011, 01:29 PM   #17
FDfranklin
d[-_-]b
FDfranklin's Avatar
24
Rep
780
Posts

 
Drives: 2011 LeMans Blue 135i
Join Date: Aug 2010
Location: Tampa, Fl

iTrader: (1)

Quote:
Originally Posted by alexc93 View Post
yep, im in naples and germain bmw has absolutely no problem with it...saying that they are probably the coolest dealer ever. they tend to look over mods
Hmm.. how far is that dealership from Tampa?
__________________
Appreciate 0
      02-22-2011, 01:44 PM   #18
Brian@bavarianx
Banned
United_States
77
Rep
2,268
Posts

 
Drives: E36 M3
Join Date: Feb 2011
Location: Brea, CA

iTrader: (8)

Send a message via AIM to Brian@bavarianx
Quote:
Originally Posted by FDfranklin View Post
Are your guys dealerships ok with downpipes?
Most likely not. But if they're throwing on downpipes anyway, they don't give a f***!
Appreciate 0
      02-23-2011, 01:25 AM   #19
ModBargains.com
Banned
United_States
316
Rep
13,593
Posts

 
Drives: JB E92 335i
Join Date: Feb 2008
Location: 1721 E. Lambert Rd #C, La Habra, CA 90631

iTrader: (51)

Catless downpipes are always going to yield better performance gains. We are actually running a group buy on the AR Design N55 4" downpipes right now for those of you who are interested in picking up a set!!
Appreciate 0
      02-23-2011, 10:11 AM   #20
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 **********s.com View Post
Catless downpipes are always going to yield better performance gains. We are actually running a group buy on the AR Design N55 4" downpipes right now for those of you who are interested in picking up a set!!
Appreciate 0
      02-26-2011, 08:50 PM   #21
MJR63
Lieutenant
MJR63's Avatar
United_States
5
Rep
415
Posts

 
Drives: 2011 335i X-Drive Sedan
Join Date: Sep 2010
Location: Tolland, CT

iTrader: (5)

Garage List
I spoke with Harold at HP Autowerks and he told me there was only a 4 HP difference from the iCarbon cattless vs. catted. I'm leading towards the catted. The catted ones are high flow and I like the idea of not having to take off my DP for service due to code issues....
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 03:18 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