E90Post
 


Bimmer Retrofit
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Custom Catless Manifold + BMS Downpip Fix Install



Reply
 
Thread Tools Search this Thread
      11-22-2012, 05:08 AM   #23
kiwi29
Team iTouge
kiwi29's Avatar
United_States
35
Rep
2,074
Posts

 
Drives: 09 M-Tech 328i
Join Date: Jul 2011
Location: Long Beach, CA

iTrader: (9)

I'm a bit curious to see how this sounds vs. If you had an equal length design. Please keep us updated
__________________
Quote:
Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
Appreciate 0
      11-22-2012, 04:05 PM   #24
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Quote:
Originally Posted by kiwi29 View Post
I'm a bit curious to see how this sounds vs. If you had an equal length design. Please keep us updated
I will take a video today from inside and out.
Appreciate 0
      11-22-2012, 04:15 PM   #25
kiwi29
Team iTouge
kiwi29's Avatar
United_States
35
Rep
2,074
Posts

 
Drives: 09 M-Tech 328i
Join Date: Jul 2011
Location: Long Beach, CA

iTrader: (9)

Quote:
Originally Posted by mapleridge View Post
I will take a video today from inside and out.
What does the bms dp fix exactly do for us n52 owners?
__________________
Quote:
Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
Appreciate 0
      11-22-2012, 04:38 PM   #26
andrey_gta
Brigadier General
andrey_gta's Avatar
Canada
54
Rep
3,376
Posts

 
Drives: 130i coupé ;)
Join Date: Nov 2011
Location: Bimmerpost

iTrader: (1)

Garage List
2008 BMW 128i  [0.00]
Quote:
Originally Posted by kiwi29 View Post
What does the bms dp fix exactly do for us n52 owners?
its acts like an O2 sim/bung. U need to code it to do that... Not sure how.
__________________
128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e36M lip Wishlist: //M front arm, coils, n55 eng mnt, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
Appreciate 0
      11-22-2012, 05:15 PM   #27
kiwi29
Team iTouge
kiwi29's Avatar
United_States
35
Rep
2,074
Posts

 
Drives: 09 M-Tech 328i
Join Date: Jul 2011
Location: Long Beach, CA

iTrader: (9)

Quote:
Originally Posted by andrey_gta View Post
its acts like an O2 sim/bung. U need to code it to do that... Not sure how.
Hmm.. I get what you mean now, is this meant to use only with catless headers/dp?
__________________
Quote:
Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
Appreciate 0
      11-22-2012, 11:58 PM   #28
1slowbmw
Private First Class
1
Rep
113
Posts

 
Drives: BMW e90
Join Date: Nov 2012
Location: LI/Bronx

iTrader: (0)

Quote:
Originally Posted by kiwi29 View Post
Hmm.. I get what you mean now, is this meant to use only with catless headers/dp?
yea it tricks the car into thinking the cats are still there to prevent a CEL and failing emissions tests
Appreciate 0
      11-23-2012, 08:30 AM   #29
kiwi29
Team iTouge
kiwi29's Avatar
United_States
35
Rep
2,074
Posts

 
Drives: 09 M-Tech 328i
Join Date: Jul 2011
Location: Long Beach, CA

iTrader: (9)

Quote:
Originally Posted by 1slowbmw View Post
yea it tricks the car into thinking the cats are still there to prevent a CEL and failing emissions tests
Alright I get it now! Thanks for the claification
__________________
Quote:
Originally Posted by The HACK View Post
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.
Appreciate 0
      11-23-2012, 09:02 AM   #30
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Here is a brief video I could do of some city traffic driving. My mother in law makes a guest appearance.

Appreciate 0
      11-23-2012, 09:57 AM   #31
monkey_wrench
Caught the Bimmer-Bug
monkey_wrench's Avatar
No_Country
10
Rep
660
Posts

 
Drives: '06 330i
Join Date: Aug 2011
Location: Florida

iTrader: (10)

Garage List
2006 330i  [0.00]
video is private.
Appreciate 0
      11-23-2012, 10:12 AM   #32
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Quote:
Originally Posted by monkey_wrench View Post
video is private.
sorry. uploaded from my phone and didn't notice. Changed it now. let me know if it works.
Appreciate 0
      11-23-2012, 10:19 AM   #33
DESI4life10
Banned
DESI4life10's Avatar
Canada
47
Rep
3,365
Posts

 
Drives: Coding: Desi4life10@gmail.com
Join Date: Oct 2008
Location: West of Toronto, Canada

iTrader: (18)

Nice.

Need some nice WOT vids too :-)

Looks like there isn't much increase in cabin noise (which is a good thing).
Keep it up :-)
Appreciate 0
      11-23-2012, 10:41 AM   #34
N0OS3
Colonel
N0OS3's Avatar
United_States
41
Rep
2,220
Posts

 
Drives: E90
Join Date: Feb 2010
Location: Oak Harbor, WA

iTrader: (5)

long tube headers are the type that usually make a lot of noise... his are custom catless single-tube headers. Big difference but still makes the necessary horsepower without all the unwanted noise.
I prefer the loudness myself... :/
mapleridge, if you wanted to meet up tomorrow, drop me a PM about where u want to meet.
Appreciate 0
      11-23-2012, 04:54 PM   #35
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Quote:
Originally Posted by DESI4life10 View Post
Nice.

Need some nice WOT vids too :-)

Looks like there isn't much increase in cabin noise (which is a good thing).
Keep it up :-)
I will take another one with WOT on the way home if I can get some uncongested road.

Quote:
Originally Posted by N0OS3 View Post
long tube headers are the type that usually make a lot of noise... his are custom catless single-tube headers. Big difference but still makes the necessary horsepower without all the unwanted noise.
I prefer the loudness myself... :/
mapleridge, if you wanted to meet up tomorrow, drop me a PM about where u want to meet.
thanks. I cleared codes and adaptations with Inpa and with smooth1's free software. I have a coding cable too. Don't think I will need to come down anymore. Plus with black friday border line ups it would be ugly. Thanks anyways though. Maybe another time.
Appreciate 0
      11-24-2012, 02:20 AM   #36
Volasko
Major
Volasko's Avatar
Canada
22
Rep
1,125
Posts

 
Drives: 2006 E90 330i BSM 6MT ZSP
Join Date: Dec 2010
Location: Toronto

iTrader: (2)

Garage List
We need the WOT! Plus some outside neutral revs!
Appreciate 0
      11-25-2012, 12:59 AM   #37
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Ok....I'm not a cinematographer but here is an idle video and another one where I punched it. It is pretty evident that these things aren't loud at all. They change the sound ever so slightly.








*edited to add neutral revs.

Last edited by mapleridge; 11-25-2012 at 01:24 AM.
Appreciate 0
      11-25-2012, 11:41 PM   #38
gunnerxq
Captain
gunnerxq's Avatar
United_States
16
Rep
974
Posts

 
Drives: e90 "325i"
Join Date: Sep 2010
Location: Staten Island and Albany

iTrader: (0)

Quote:
Originally Posted by mapleridge View Post
Ok....I'm not a cinematographer but here is an idle video and another one where I punched it. It is pretty evident that these things aren't loud at all. They change the sound ever so slightly.








*edited to add neutral revs.
last video is private.
__________________
Bilstein shocks, eibach pro-kit springs, Remus exhaust, stage 3 intake manifold,Stage 2 AA tune, BMW Short shift kit.
Appreciate 0
      11-26-2012, 12:23 AM   #39
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

fixed the last video.
Appreciate 0
      11-26-2012, 01:40 AM   #40
Route 16
I got lei'd
Route 16's Avatar
Philippines
59
Rep
4,691
Posts

 
Drives: '07 E90 328i
Join Date: Sep 2011
Location: BayArea

iTrader: (31)

Looks like you found your noise level tolerance, I wonder how it would've sounded with the DA pipes. What pipes are you going to run with later?
Appreciate 0
      11-26-2012, 02:00 AM   #41
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Quote:
Originally Posted by Route 16 View Post
Looks like you found your noise level tolerance, I wonder how it would've sounded with the DA pipes. What pipes are you going to run with later?
I actually dyno'd with the stock exhaust and the Detail addict pipes did have gains in tq and hp over stock. It was negligible though. I figure deleting secondaries on the stock system would get me more gains than the DA setup. For now, I am enjoying the quiet. Once I dyno, these headers and if the power is there I will delete second cats too and if it gets too loud I will throw more resonators on. I like the single side outlet for now. If anything I would just change the oem outlets to fit my m3 rep. Swapping between bumpers is cool for now. A friend at the shop showed me how to uninstall the rear bumper in a flash so it's like switching underwear now.
Appreciate 0
      11-26-2012, 02:11 AM   #42
Route 16
I got lei'd
Route 16's Avatar
Philippines
59
Rep
4,691
Posts

 
Drives: '07 E90 328i
Join Date: Sep 2011
Location: BayArea

iTrader: (31)

Quote:
Originally Posted by mapleridge View Post
I actually dyno'd with the stock exhaust and the Detail addict pipes did have gains in tq and hp over stock. It was negligible though. I figure deleting secondaries on the stock system would get me more gains than the DA setup. For now, I am enjoying the quiet. Once I dyno, these headers and if the power is there I will delete second cats too and if it gets too loud I will throw more resonators on. I like the single side outlet for now. If anything I would just change the oem outlets to fit my m3 rep. Swapping between bumpers is cool for now. A friend at the shop showed me how to uninstall the rear bumper in a flash so it's like switching underwear now.
Haha awesome, hopefully doing some dyno runs too against my eisenmann and detail addict set up. Should've gone with the m-tech rear and remove the diffuser. That's what I'll end up doing while trying to figure out which exhaust end I want.
Appreciate 0
      11-26-2012, 07:33 PM   #43
Johnny D
Major
Johnny D's Avatar
19
Rep
1,124
Posts

 
Drives: 2006 BMW 325i
Join Date: Apr 2011
Location: Hot Springs, AR

iTrader: (4)

Garage List
2006 BMW 325i  [4.58]
Just finished installing my headers. Took me about 5 hours. Got to head to the exhaust shop tomorrow and get them connected to the mid pipes. Right now they are wide open and loud as hell haha!
__________________
Appreciate 0
      11-26-2012, 09:06 PM   #44
mapleridge
Banned
43
Rep
2,681
Posts

 
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

iTrader: (4)

Quote:
Originally Posted by Johnny D View Post
Just finished installing my headers. Took me about 5 hours. Got to head to the exhaust shop tomorrow and get them connected to the mid pipes. Right now they are wide open and loud as hell haha!
I thought you had adjustable flanges? Can't you bolt right up?
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 11:25 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