BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
Evolve Automotive
Post Reply
 
Thread Tools Search this Thread
      03-20-2012, 12:01 PM   #23
Boostin FD
Major
 
Boostin FD's Avatar
 
Drives: F82 M4
Join Date: Jan 2010
Location: St. Louis

Posts: 1,366
iTrader: (2)

Mine catless setup doesn't smell as much now as it used to at the beginning. I don't know if i'm just used to it, or if someone re-learned.
__________________
Boostin FD is offline   United_States
0
Reply With Quote
      04-11-2012, 12:11 PM   #24
Jbook
Major
 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area

Posts: 1,227
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Any e90 guys with full exhaust (especially AA) experiencing what sounds like a vibration in the low RPMs from a stop? It sounds like it's coming from the rear cupholders in the center armrest...
Jbook is offline  
0
Reply With Quote
      04-12-2012, 12:44 AM   #25
L4ces
Captain
 
L4ces's Avatar
 
Drives: 2008 E92 M3 Alpine White
Join Date: Aug 2010
Location: Nj

Posts: 668
iTrader: (0)

Garage List
2008 M3  [0.00]
Can't help you there. But I hope you post videos.

How much did the cats reduce the smell?
L4ces is offline   United_States
0
Reply With Quote
      04-12-2012, 11:35 AM   #26
Jbook
Major
 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area

Posts: 1,227
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by L4ces View Post
Can't help you there. But I hope you post videos.

How much did the cats reduce the smell?
I would say the cats reduced the smell 90-95%. It only smells a little bit when the car is first started up and cold or when I reverse into a spot I can smell it a little after I get out of the car. The smell is not even comparable to how bad it was catless.
Jbook is offline  
0
Reply With Quote
      04-12-2012, 02:19 PM   #27
L4ces
Captain
 
L4ces's Avatar
 
Drives: 2008 E92 M3 Alpine White
Join Date: Aug 2010
Location: Nj

Posts: 668
iTrader: (0)

Garage List
2008 M3  [0.00]
Quote:
Originally Posted by Jbook
Quote:
Originally Posted by L4ces View Post
Can't help you there. But I hope you post videos.

How much did the cats reduce the smell?
I would say the cats reduced the smell 90-95%. It only smells a little bit when the car is first started up and cold or when I reverse into a spot I can smell it a little after I get out of the car. The smell is not even comparable to how bad it was catless.
Wow that is good to know. How much louder is it with the xpipes than without? Startling loud, moderately?
L4ces is offline   United_States
0
Reply With Quote
      04-12-2012, 03:39 PM   #28
Jbook
Major
 
Jbook's Avatar
 
Drives: '11 ESS E90 M3
Join Date: Sep 2010
Location: South Bay Area

Posts: 1,227
iTrader: (20)

Garage List
2011 BMW E90 M3  [4.72]
Quote:
Originally Posted by L4ces View Post
Wow that is good to know. How much louder is it with the xpipes than without? Startling loud, moderately?
I would say it's only moderately louder, but much louder above 4k RPM. The AA exhaust is already pretty loud, but now it has more of a rumble when coming to a stop and screams above 4k rpm. Without the x-pipe, the exhaust sound tended to be drowned out by engine noise above 4500 RPM or so.
Jbook is offline  
0
Reply With Quote
      04-13-2012, 11:12 AM   #29
edwinm3
Lieutenant Colonel
 
edwinm3's Avatar
 
Drives: E92 MELBOURNE RED M3
Join Date: Nov 2011
Location: Doral

Posts: 1,727
iTrader: (8)

Quote:
Originally Posted by L4ces
Can't help you there. But I hope you post videos.

How much did the cats reduce the smell?
I have full AA catless absolutely no rattling or noises
__________________

Evolve Stage 2, GTS-DCT Software, Akrapovic Exhaust, AA Catless X Pipe, AA Geen Air filter, AA Pulley, Stoptech BBK, KW V3 Coilovers
"If it feels like it's on rails, you're not driving fast enough"
edwinm3 is offline   United_States
0
Reply With Quote
Post 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 07:38 AM.




m3post
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