E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > (NEED ADVICE) New Exhaust set-up UPDATED



Reply
 
Thread Tools Search this Thread
      08-22-2014, 07:01 PM   #1
Amini77
Brigadier General
Amini77's Avatar
United_States
61
Rep
4,597
Posts

 
Drives: SGM E90 330xi
Join Date: Nov 2011
Location: Tarzana, CA

iTrader: (1)

Garage List
2006 330XI  [3.75]
(NEED ADVICE) New Exhaust set-up UPDATED

I just had my primary cats taken off and replaced it with a straight pipe. Before this I had a:

-Remus Powersound muffler
-Secondary Cat Delete
-Resonator Delete
-2.5 inch single pipe from headers back

UPDATE

I loved the sound of it but I wanted more power so I removed the primary cats from of my headers. It was way too raspy after with almost no restrictions so I added a Magnaflow Glasspack, and its still a little raspy.

After adding the glasspack for some backpressure it still feels like theres no low end torque. And according to my OBD scanner the engine is limiting torque (Error code: 2D5A). I'm getting a re-tune when I figure out the perfect setup so I want to have as much airflow as possible without losing too much back pressure. Basically, the glasspack isn't doing enough so here are my options:

-keep the glasspack and add high-flow secondaries
or
-delete the glass-pack and add high-flow secondaries
or
-replace glasspack with a more restrictive resonator (suggestions please)

I want optimum back pressure and flow.

I'll get a video when I can, my car has been in and out of the shop because of problems with the front axles.
__________________

instagram: amini77
| KW V1 | LCI rear | 359m Style | Michelin PSS | AA Stage 2 | Gruppe M | Remus | Mtech Rear | M3 Front |

Last edited by Amini77; 08-25-2014 at 10:32 PM.
Appreciate 0
      08-22-2014, 07:04 PM   #2
#Tee
Chronic trollololer level 60
#Tee's Avatar
77
Rep
4,880
Posts

 
Drives: yes
Join Date: Oct 2011
Location: Socal

iTrader: (1)

sounds wayyyyyy better than the pe and vanguard
__________________

#TeamStretchNpoke IG:Tee212

custom cf rear side diffuser add ons for sale (e9x,M3s,f3x) pm me for details. thread http://www.e90post.com/forums/showthread.php?t=962442
Appreciate 0
      08-22-2014, 07:32 PM   #3
TheAxiom
Colonel
United_States
77
Rep
2,062
Posts

 
Drives: E90 6Spd ZSP
Join Date: Nov 2013
Location: Florida

iTrader: (1)

Quote:
Originally Posted by Amini77 View Post
I just had my primary cats taken off and replaced it with a straight pipe. Before this I had a:

-Remus Powersound muffler
-Secondary Cat Delete
-Resonator Delete
-2.5 inch single pipe from headers back

Here's what it sounded like a while ago:



I loved the sound of it but I wanted more power so I removed the primary cats from of my headers. It was WAY too raspy especially at 3,000 RPM. To try to fix it I had a Magnaflow Glasspack put on as a resonator. It got rid of a lot of the drone and rasp throughout the rev range but at 3,000rpm it was still bad.

And according to an OBD scanner my engine is cutting torque because of minimal back pressure, hence why I added a glasspack. Now its still too loud I was wondering if I should add a high-flow secondary cat. I'm getting a re-tune when my decision is made so I want to have as much airflow as possible without losing too much back pressure and being too obnoxiously loud. Should I:

-keep the glasspack and add high-flow secondaries
or
-delete the glass-pack and add high-flow secondaries
or
-leave as is and get used to it.

I want optimum back pressure and flow.

I'll get a video when I can, my car has been in and out of the shop because of problems with the front axles.
That makes no sense.
__________________
Style 161s 8.5 Square, Euro Intake with K&N, Cyba Scoops, 3 Stage manifold, OE tune.
Appreciate 0
      08-22-2014, 08:11 PM   #4
Amini77
Brigadier General
Amini77's Avatar
United_States
61
Rep
4,597
Posts

 
Drives: SGM E90 330xi
Join Date: Nov 2011
Location: Tarzana, CA

iTrader: (1)

Garage List
2006 330XI  [3.75]
Quote:
Originally Posted by TheAxiom View Post
That makes no sense.
Exactly what part so I can clarify better.
__________________

instagram: amini77
| KW V1 | LCI rear | 359m Style | Michelin PSS | AA Stage 2 | Gruppe M | Remus | Mtech Rear | M3 Front |
Appreciate 0
      08-22-2014, 09:48 PM   #5
Amini77
Brigadier General
Amini77's Avatar
United_States
61
Rep
4,597
Posts

 
Drives: SGM E90 330xi
Join Date: Nov 2011
Location: Tarzana, CA

iTrader: (1)

Garage List
2006 330XI  [3.75]
Quote:
Originally Posted by #Tee View Post
sounds wayyyyyy better than the pe and vanguard
Haha can't tell if sarcasm...
__________________

instagram: amini77
| KW V1 | LCI rear | 359m Style | Michelin PSS | AA Stage 2 | Gruppe M | Remus | Mtech Rear | M3 Front |
Appreciate 0
      08-22-2014, 10:45 PM   #6
#Tee
Chronic trollololer level 60
#Tee's Avatar
77
Rep
4,880
Posts

 
Drives: yes
Join Date: Oct 2011
Location: Socal

iTrader: (1)

no its real, those other 2 sounds like gutless hondas on every clip ive seen on yt
__________________

#TeamStretchNpoke IG:Tee212

custom cf rear side diffuser add ons for sale (e9x,M3s,f3x) pm me for details. thread http://www.e90post.com/forums/showthread.php?t=962442
Appreciate 0
      08-22-2014, 10:51 PM   #7
Amini77
Brigadier General
Amini77's Avatar
United_States
61
Rep
4,597
Posts

 
Drives: SGM E90 330xi
Join Date: Nov 2011
Location: Tarzana, CA

iTrader: (1)

Garage List
2006 330XI  [3.75]
Quote:
Originally Posted by #Tee View Post
no its real, those other 2 sounds like gutless hondas on every clip ive seen on yt
Ohh well then thank you!
__________________

instagram: amini77
| KW V1 | LCI rear | 359m Style | Michelin PSS | AA Stage 2 | Gruppe M | Remus | Mtech Rear | M3 Front |
Appreciate 0
      08-22-2014, 11:59 PM   #8
PureE92
Private First Class
7
Rep
140
Posts

 
Drives: E92
Join Date: Sep 2012
Location: Texas

iTrader: (0)

sounds nice brah
Appreciate 0
      08-23-2014, 11:22 AM   #9
TheAxiom
Colonel
United_States
77
Rep
2,062
Posts

 
Drives: E90 6Spd ZSP
Join Date: Nov 2013
Location: Florida

iTrader: (1)

Quote:
Originally Posted by Amini77 View Post
Exactly what part so I can clarify better.
The part about back pressure.
Appreciate 0
      08-23-2014, 11:37 AM   #10
hassmaschine
Second Lieutenant
12
Rep
290
Posts

 
Drives: 2006 330i 6sp w/ sport package
Join Date: Jun 2014
Location: earth

iTrader: (0)

Back pressure does NOT make torque.
Appreciate 0
      08-23-2014, 01:43 PM   #11
TheAxiom
Colonel
United_States
77
Rep
2,062
Posts

 
Drives: E90 6Spd ZSP
Join Date: Nov 2013
Location: Florida

iTrader: (1)

Quote:
Originally Posted by hassmaschine View Post
Back pressure does NOT make torque.
That's my point.
__________________
Style 161s 8.5 Square, Euro Intake with K&N, Cyba Scoops, 3 Stage manifold, OE tune.
Appreciate 0
      08-23-2014, 02:18 PM   #12
E46driver
Lieutenant
E46driver's Avatar
United_States
7
Rep
447
Posts

 
Drives: 2009 E92 N51 328i
Join Date: Jan 2012
Location: Rowland Heights

iTrader: (2)

Wow.... Sounds great
__________________
2009 Alpine White E92 N51 328i Automagic | Premium & Sport Pkg. | Coral Red/Black Dakota Leather Interior | BMW Performance Exhaust | Gruppe M Intake | Varrstoen ES1 | Gloss Black Roof Vinyl | Performance Front Grills | M-Sport Kit(-Skirts) | LUX H8 V3 AE | GP Thunder Fogs
Appreciate 0
      08-23-2014, 04:59 PM   #13
b-man
Captain
b-man's Avatar
United_States
6
Rep
714
Posts

 
Drives: 328xi
Join Date: Jan 2013
Location: maine

iTrader: (1)

Back pressure shouldn't be a problem on na engines, as far as I know.

I would have left the primaries on and tried a different muffler
Appreciate 0
      08-23-2014, 06:41 PM   #14
Route 16
I got lei'd
Route 16's Avatar
Philippines
60
Rep
4,702
Posts

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

iTrader: (31)

I have always liked the idea of all catless. But i remember on the m3 forums. The guy wanted catless sound, without sacrificing smell and power. Keeping the primary cat shells and fitting high flow/performance cats would be my suggestion. I want to do the same but i just dont know if it'll be the same result with the current cats.
Appreciate 0
      08-23-2014, 06:50 PM   #15
Amini77
Brigadier General
Amini77's Avatar
United_States
61
Rep
4,597
Posts

 
Drives: SGM E90 330xi
Join Date: Nov 2011
Location: Tarzana, CA

iTrader: (1)

Garage List
2006 330XI  [3.75]
Quote:
Originally Posted by Route 16 View Post
I have always liked the idea of all catless. But i remember on the m3 forums. The guy wanted catless sound, without sacrificing smell and power. Keeping the primary cat shells and fitting high flow/performance cats would be my suggestion. I want to do the same but i just dont know if it'll be the same result with the current cats.
It smells like one of those gas powered go-karts where ever I go lol I'll get a video up soon.
__________________

instagram: amini77
| KW V1 | LCI rear | 359m Style | Michelin PSS | AA Stage 2 | Gruppe M | Remus | Mtech Rear | M3 Front |
Appreciate 0
      08-23-2014, 09:18 PM   #16
TheAxiom
Colonel
United_States
77
Rep
2,062
Posts

 
Drives: E90 6Spd ZSP
Join Date: Nov 2013
Location: Florida

iTrader: (1)

Quote:
Originally Posted by Route 16 View Post
I have always liked the idea of all catless. But i remember on the m3 forums. The guy wanted catless sound, without sacrificing smell and power. Keeping the primary cat shells and fitting high flow/performance cats would be my suggestion. I want to do the same but i just dont know if it'll be the same result with the current cats.
You're just better off buying AFE headers or Euro headers. The stock manifolds are crap, the primaries are too short, the merge is terrible, etc etc. Essentially anything is better than those boat anchors.
__________________
Style 161s 8.5 Square, Euro Intake with K&N, Cyba Scoops, 3 Stage manifold, OE tune.
Appreciate 0
      08-23-2014, 09:59 PM   #17
Route 16
I got lei'd
Route 16's Avatar
Philippines
60
Rep
4,702
Posts

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

iTrader: (31)

Quote:
Originally Posted by TheAxiom View Post
You're just better off buying AFE headers or Euro headers. The stock manifolds are crap, the primaries are too short, the merge is terrible, etc etc. Essentially anything is better than those boat anchors.
All true.
Appreciate 0
      08-24-2014, 12:11 AM   #18
Tim07e90
Lieutenant
Tim07e90's Avatar
United_States
5
Rep
472
Posts

 
Drives: 2007 E90 328i
Join Date: Mar 2012
Location: SoCal

iTrader: (4)

Garage List
2007 BMW 328i  [4.25]
Quote:
Originally Posted by TheAxiom
Quote:
Originally Posted by Route 16 View Post
I have always liked the idea of all catless. But i remember on the m3 forums. The guy wanted catless sound, without sacrificing smell and power. Keeping the primary cat shells and fitting high flow/performance cats would be my suggestion. I want to do the same but i just dont know if it'll be the same result with the current cats.
You're just better off buying AFE headers or Euro headers. The stock manifolds are crap, the primaries are too short, the merge is terrible, etc etc. Essentially anything is better than those boat anchors.
Yup, exactly. I'm planning on buying AFE headers to pair with my AFE mid pipes, resonator delete and custom quad set up.
Appreciate 0
      08-24-2014, 01:17 AM   #19
Route 16
I got lei'd
Route 16's Avatar
Philippines
60
Rep
4,702
Posts

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

iTrader: (31)

Quote:
Originally Posted by Tim07e90 View Post
Yup, exactly. I'm planning on buying AFE headers to pair with my AFE mid pipes, resonator delete and custom quad set up.
Has anyone fitted/reviewed the AFE headers yet?
Appreciate 0
      08-24-2014, 01:20 AM   #20
Tim07e90
Lieutenant
Tim07e90's Avatar
United_States
5
Rep
472
Posts

 
Drives: 2007 E90 328i
Join Date: Mar 2012
Location: SoCal

iTrader: (4)

Garage List
2007 BMW 328i  [4.25]
Quote:
Originally Posted by Route 16
Quote:
Originally Posted by Tim07e90 View Post
Yup, exactly. I'm planning on buying AFE headers to pair with my AFE mid pipes, resonator delete and custom quad set up.
Has anyone fitted/reviewed the AFE headers yet?
Budvlad on here did it. He said it went in perfect and it sounded great. I agree that full catless sounds too raspy. These seem to be a great alternative.
Appreciate 0
      08-24-2014, 04:58 AM   #21
Emozoo
Captain
Emozoo's Avatar
20
Rep
622
Posts

 
Drives: 2010 328xi premium package
Join Date: May 2013
Location: Eastern Long Island

iTrader: (1)

Garage List
2010 328 xi  [0.00]
Quote:
Originally Posted by Tim07e90 View Post
Budvlad on here did it. He said it went in perfect and it sounded great. I agree that full catless sounds too raspy. These seem to be a great alternative.
he tried the afe catted headers? wow I thought no one tried these yet..is there a review thread?

edit i posted a lot in the thread... smh

triple edit- he never posted a review really
__________________
2010 FBO e90 328xi. Suspension: ZSP i springs, m3/z4 bump stops, 12mm front spacer, 15 mm back, Michelin Sport As3
"Just because you are a character doesn't mean that you have character." -The Wolf

Last edited by Emozoo; 08-24-2014 at 06:34 AM.
Appreciate 0
      08-24-2014, 09:13 AM   #22
Tim07e90
Lieutenant
Tim07e90's Avatar
United_States
5
Rep
472
Posts

 
Drives: 2007 E90 328i
Join Date: Mar 2012
Location: SoCal

iTrader: (4)

Garage List
2007 BMW 328i  [4.25]
Quote:
Originally Posted by Emozoo
Quote:
Originally Posted by Tim07e90 View Post
Budvlad on here did it. He said it went in perfect and it sounded great. I agree that full catless sounds too raspy. These seem to be a great alternative.
he tried the afe catted headers? wow I thought no one tried these yet..is there a review thread?

edit i posted a lot in the thread... smh

triple edit- he never posted a review really
Search Afe headers and you'll find his 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 11:28 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