E90Post
 


GetBMWParts
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Active Autowerke | N52 Signature Exhaust



Reply
 
Thread Tools Search this Thread
      09-23-2012, 09:30 AM   #287
Wrngway
Lieutenant
Wrngway's Avatar
7
Rep
412
Posts

 
Drives: '11 328i Sedan A6
Join Date: Jul 2011
Location: D.C. Metro

iTrader: (0)

Concerning N51 vs N52 exhuast. It's the section after the secondary cats that is different.

After checking on realoem, both engines do have secondary cats. It looks like the muffler & resonator are one part in the N51 (Rear Exhaust PN 18307572671), whereas the N52 they are two seperate parts (Center Muffler PN 18307567138 & Rear Muffler PN 18307566941). Pictures may explain better.

Here's the N52:


N52 Part#'s:
http://realoem.com/bmw/showparts.do?...11&hg=18&fg=20

Here's the N51:


N51 Part#'s:
http://realoem.com/bmw/showparts.do?...87&hg=18&fg=20
Appreciate 0
      09-23-2012, 03:15 PM   #288
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor
Andrew@ActiveAutowerke's Avatar
91
Rep
3,583
Posts


 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

iTrader: (5)

Wrngway has been nice enough to let us know that our exhaust will not fit the n51 without being modified due to a larger diameter of the stock piping.

Potential buyers please note:

It will require some cutting and welding.
__________________
Appreciate 0
      09-25-2012, 03:28 PM   #289
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor
Andrew@ActiveAutowerke's Avatar
91
Rep
3,583
Posts


 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

iTrader: (5)

Dynoed the exhaust today and it made power!
__________________
Appreciate 0
      09-25-2012, 05:06 PM   #290
SavvyByNature
Second Lieutenant
3
Rep
280
Posts

 
Drives: 2008 - 328i
Join Date: Feb 2011
Location: Atlanta

iTrader: (0)

Excellent! Plans on sharing the results?
__________________
Montego Blue Metallic e92 6MT|| BMW Performance SSK Kit || Charcoal Delete w/ K&N Drop-In || CDV Delete || Custom Clutch Stop || (3) Stage Manifold Swap || Stage 2 Eurocharged Tune ()
Appreciate 0
      09-25-2012, 06:32 PM   #291
Wrngway
Lieutenant
Wrngway's Avatar
7
Rep
412
Posts

 
Drives: '11 328i Sedan A6
Join Date: Jul 2011
Location: D.C. Metro

iTrader: (0)

Quote:
Originally Posted by Andrew@ActiveAutowerke View Post
Dynoed the exhaust today and it made power!
Anything over zero is great!

I'm sure you'll get bombarded with questions. Did the car have any supporting mods like an AA tune, intake, etc.?
Appreciate 0
      09-25-2012, 08:43 PM   #292
GermanMuscle
Once you drive a Bimmer, you always drive a Bimmer
United_States
3
Rep
257
Posts

 
Drives: 2011 e90
Join Date: May 2012
Location: Atlanta

iTrader: (1)

What about the back pressure? It's a muffler delete after all.
Appreciate 0
      09-25-2012, 08:56 PM   #293
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor
Andrew@ActiveAutowerke's Avatar
91
Rep
3,583
Posts


 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

iTrader: (5)

Quote:
Originally Posted by BimmerPower View Post
What about the back pressure? It's a muffler delete after all.
The placement of our drone chamber will create some back pressure. Ill take a picture and show you what i'm talking about.

Gaines were seen throughout the entire rpm band except for redline where it matched that of the stock muffler.

Ill post some official results tomorrow but I believe it was 5-6 whp and 7-8 wtq.
__________________
Appreciate 0
      09-25-2012, 11:54 PM   #294
paladin0088
New Member
Canada
0
Rep
18
Posts

 
Drives: 2011 328i xDrive E90
Join Date: Feb 2012
Location: Edmonton, AB

iTrader: (0)

Quote:
Originally Posted by Andrew@ActiveAutowerke View Post
I believe it was 5-6 whp and 7-8 wtq.
Appreciate 0
      09-26-2012, 02:26 AM   #295
ZeroSix
Private First Class
ZeroSix's Avatar
United_States
1
Rep
135
Posts

 
Drives: 2013 BMW 335i
Join Date: Dec 2011
Location: SoCal

iTrader: (1)

Garage List
2013 BMW 335i  [5.00]
Quote:
Originally Posted by Andrew@ActiveAutowerke
The placement of our drone chamber will create some back pressure. Ill take a picture and show you what i'm talking about.

Gaines were seen throughout the entire rpm band except for redline where it matched that of the stock muffler.

Ill post some official results tomorrow but I believe it was 5-6 whp and 7-8 wtq.
Woooo! I didn't even expect a gain of power. That's awesome!

Last edited by ZeroSix; 09-26-2012 at 05:57 PM.
Appreciate 0
      09-26-2012, 09:43 AM   #296
upstatedoc
Drone Expert
upstatedoc's Avatar
52
Rep
1,594
Posts

 
Drives: '09 BMW 328ix
Join Date: Dec 2009
Location: NY

iTrader: (1)

Quote:
Originally Posted by Andrew@ActiveAutowerke View Post
Wrngway has been nice enough to let us know that our exhaust will not fit the n51 without being modified due to a larger diameter of the stock piping.
Is there some kind of adapter that can be fashioned by AA before I get my installer in there cutting and welding?
__________________
2014 S.S. P938 Nightmare
2014 Dodge Durango R/T //Diablosports Tuning
2009 E90 N51 /Active Autowerke Stage 2 tune/BMW Performance Exhaust/
1993 Honda Nighthawk 750
Countermeasure enthusiast.
Appreciate 0
      09-26-2012, 10:21 AM   #297
plokij
Lieutenant
plokij's Avatar
United_States
6
Rep
520
Posts

 
Drives: Nothing
Join Date: May 2011
Location: SoCal

iTrader: (1)

That's sick! A little bonus on top of the sound. Mine finally made its way to the west coast. Should be picking it up today.
Appreciate 0
      09-26-2012, 11:19 AM   #298
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor
Andrew@ActiveAutowerke's Avatar
91
Rep
3,583
Posts


 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

iTrader: (5)

Quote:
Originally Posted by upstatedoc View Post
Is there some kind of adapter that can be fashioned by AA before I get my installer in there cutting and welding?
We were just talking about this. Anyone know the exact diameter of the n51 piping?

We don't have any n51's in this state.
__________________
Appreciate 0
      09-26-2012, 12:04 PM   #299
upstatedoc
Drone Expert
upstatedoc's Avatar
52
Rep
1,594
Posts

 
Drives: '09 BMW 328ix
Join Date: Dec 2009
Location: NY

iTrader: (1)

Quote:
Originally Posted by Andrew@ActiveAutowerke View Post
We were just talking about this. Anyone know the exact diameter of the n51 piping?

We don't have any n51's in this state.
Any chance of AA engineering, developing, manufacturing and sending this out overnight for my install tomorrow?

may have to delay install if you guys are working on something that will facilitate install
__________________
2014 S.S. P938 Nightmare
2014 Dodge Durango R/T //Diablosports Tuning
2009 E90 N51 /Active Autowerke Stage 2 tune/BMW Performance Exhaust/
1993 Honda Nighthawk 750
Countermeasure enthusiast.
Appreciate 0
      09-26-2012, 12:17 PM   #300
manutdas11
EL JIMMY NEURON
manutdas11's Avatar
United_States
13
Rep
1,209
Posts

 
Drives: Jet Black E90
Join Date: Aug 2012
Location: in the Napa Valley/SJ...

iTrader: (0)

Quote:
Originally Posted by upstatedoc View Post
Any chance of AA engineering, developing, manufacturing and sending this out overnight for my install tomorrow?

may have to delay install if you guys are working on something that will facilitate install

Just get it welded! At least that's what I'll do...
__________________
2007 Jet Black E90 328i
Thread: http://www.e90post.com/forums/showthread.php?t=825249
Instagram: manutd_as
Appreciate 0
      09-26-2012, 01:37 PM   #301
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor
Andrew@ActiveAutowerke's Avatar
91
Rep
3,583
Posts


 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

iTrader: (5)

Quote:
Originally Posted by upstatedoc View Post
Any chance of AA engineering, developing, manufacturing and sending this out overnight for my install tomorrow?

may have to delay install if you guys are working on something that will facilitate install
Don't have anything in the works at the moment.
__________________
Appreciate 0
      09-26-2012, 07:39 PM   #302
GermanMuscle
Once you drive a Bimmer, you always drive a Bimmer
United_States
3
Rep
257
Posts

 
Drives: 2011 e90
Join Date: May 2012
Location: Atlanta

iTrader: (1)

Finally got it installed!

Last edited by GermanMuscle; 09-26-2012 at 10:11 PM.
Appreciate 0
      09-26-2012, 07:55 PM   #303
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor
Andrew@ActiveAutowerke's Avatar
91
Rep
3,583
Posts


 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

iTrader: (5)

WOoohoo
__________________
Appreciate 0
      09-26-2012, 09:01 PM   #304
manutdas11
EL JIMMY NEURON
manutdas11's Avatar
United_States
13
Rep
1,209
Posts

 
Drives: Jet Black E90
Join Date: Aug 2012
Location: in the Napa Valley/SJ...

iTrader: (0)

Quote:
Originally Posted by GermanMuscle View Post
Finally got it installed!
ZOMG!!! Okay, I am going tomorrow first thing in the morning to get this welded on!!!
__________________
2007 Jet Black E90 328i
Thread: http://www.e90post.com/forums/showthread.php?t=825249
Instagram: manutd_as
Appreciate 0
      09-26-2012, 11:24 PM   #305
plokij
Lieutenant
plokij's Avatar
United_States
6
Rep
520
Posts

 
Drives: Nothing
Join Date: May 2011
Location: SoCal

iTrader: (1)

Huuuuuuge difference.
Appreciate 0
      09-26-2012, 11:38 PM   #306
paladin0088
New Member
Canada
0
Rep
18
Posts

 
Drives: 2011 328i xDrive E90
Join Date: Feb 2012
Location: Edmonton, AB

iTrader: (0)

Quote:
Originally Posted by plokij View Post
Huuuuuuge difference.
and much better
Appreciate 0
      09-27-2012, 08:01 AM   #307
benzo23
Colonel
benzo23's Avatar
35
Rep
2,886
Posts

 
Drives: 14 F30 AW MSport
Join Date: Apr 2010
Location: FL

iTrader: (1)

Quote:
Originally Posted by GermanMuscle View Post
Finally got it installed!
Need some outside driving videos of you pulling away and some drive bys. Great first video tho
Appreciate 0
      09-27-2012, 08:44 AM   #308
fravel
Captain
fravel's Avatar
United_States
6
Rep
663
Posts

 
Drives: Monaco Blue '06 330i
Join Date: Aug 2012
Location: The Nasti 'Nati

iTrader: (0)

That sounds incredible!
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 03:44 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