E90Post
 


TireRack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Cat + resonator removal



Reply
 
Thread Tools Search this Thread
      01-17-2008, 01:43 AM   #1
mtkid
First Lieutenant
mtkid's Avatar
United_States
7
Rep
387
Posts

 
Drives: None
Join Date: Dec 2006
Location: California

iTrader: (0)

Garage List
2006 325i  [0.00]
Send a message via AIM to mtkid
Cat + resonator removal

Hey, so I already have the muffler delete and am soon to redo my entire exhaust. I was thinking of removing the secondary cats and resonator while I'm at it. Anyone done this? Any gains? Sexy sounds?
__________________
mods to come: koni yellows. camber kit. matte black m6 reps. mtec cf spoiler
Appreciate 0
      01-17-2008, 03:46 AM   #2
Adam@Riss Racing
Banned
United_States
40
Rep
1,310
Posts

 
Drives: 2006 Interlagos Blue BMW M5
Join Date: Jul 2007
Location: Irvine, CA

iTrader: (1)

Garage List
Send a message via AIM to Adam@Riss Racing
Quote:
Originally Posted by michaelkidon View Post
Hey, so I already have the muffler delete and am soon to redo my entire exhaust. I was thinking of removing the secondary cats and resonator while I'm at it. Anyone done this? Any gains? Sexy sounds?
Search that setup on Youtube. You should get a lot of videos with your setup you are looking for.

GL
Appreciate 0
      01-17-2008, 03:50 AM   #3
Andrew@ET
Brigadier General
73
Rep
4,041
Posts

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

iTrader: (9)

if u like mustang sounds sure go for it.

total loss of back pressure
Appreciate 0
      01-17-2008, 07:41 AM   #4
Excellence
G-STAR
Excellence's Avatar
65
Rep
1,899
Posts

 
Drives: E90 to A5
Join Date: Dec 2006
Location: Richmond, BC

iTrader: (0)

Quote:
Originally Posted by miamibusta69 View Post
if u like mustang sounds sure go for it.

total loss of back pressure
You probably don't know what your talking about.

Quote:
Originally Posted by reallyslow View Post
Amen, someone knows something. Backpressure is the last thing you want in any car, it is completely the wrong term. Anybody that tells you an exhaust creates backpressure has no clue what theyre talking about.

Exhaust velocity is what youre dealing with. The size and flow of the exhaust determine the velocity, along with other factors... NOT backpressure...
Read up.
Appreciate 0
      01-18-2008, 02:59 AM   #5
AH
Major
AH's Avatar
Indonesia
16
Rep
1,165
Posts

 
Drives: E90 320i
Join Date: Nov 2006
Location: Indonesia

iTrader: (0)

Garage List
2006 E90  [0.00]
just wondering, if all the muffler, cats and resonator are removed, I assume it will impact the fuel efficiency or some sort?
__________________

Mods: Remus, Blacklines, Hartge, ACS, Breyton, Eibach, 20" Lative
Appreciate 0
      01-18-2008, 03:05 AM   #6
evoi19
Mongolia
200
Rep
16,729
Posts

 
Drives: 2007 328i 6 MT
Join Date: Dec 2006
Location: Bay Area

iTrader: (18)

Send a message via AIM to evoi19
if you're gonna remove all that...minus well remove all the piping that goes along with it...right? lol
__________________
Appreciate 0
      01-18-2008, 11:48 AM   #7
mtkid
First Lieutenant
mtkid's Avatar
United_States
7
Rep
387
Posts

 
Drives: None
Join Date: Dec 2006
Location: California

iTrader: (0)

Garage List
2006 325i  [0.00]
Send a message via AIM to mtkid
right, new piping
__________________
mods to come: koni yellows. camber kit. matte black m6 reps. mtec cf spoiler
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 09:02 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