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
 
European Auto Source
Post Reply
 
Thread Tools Search this Thread
      08-24-2008, 08:56 PM   #1
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Xpipe/res-cat delete

Has any one put a Resonator and cold start cat delete xpipe with stock muffler?
Z4dave is offline  
0
Reply With Quote
      08-25-2008, 05:37 PM   #2
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Just Deleted the Resonator, sounds rasspy reving but underload sound realy bad ass IMO

Having the secondary cats removed tomorrow

Stock
http://www.youtube.com/watch?v=oPwAALdX_dA
After
http://www.youtube.com/watch?v=528PwOHe0is
Attached Images
   
Z4dave is offline  
0
Reply With Quote
      08-25-2008, 11:00 PM   #3
hamann330ci
Second Lieutenant
 
hamann330ci's Avatar
 
Drives: 2002 E46 330ci
Join Date: Feb 2007
Location: Metairie, La

Posts: 230
iTrader: (1)

I really like the sound of that!
hamann330ci is offline   United_States
0
Reply With Quote
      08-26-2008, 09:15 AM   #4
GT3 Tim
Moderator
 
GT3 Tim's Avatar
 
Drives: 2008 E90 M3
Join Date: Feb 2008
Location: Sacramento, CA

Posts: 1,894
iTrader: (0)

Z4Dave -- sounds good! That is ONLY a resonator delete, right? Stock mufflers are still on?

Sounds REALLY good to me...better than I thought.

Where in norcal are you? Would love to hear it in person!
__________________
Tim (apparently likes "3" cars)
E90 M3 -- Current ride
2004 GT3 -- Sold
1997 M3/4 -- Sold
1995 M3 -- Sold

Last edited by GT3 Tim; 08-26-2008 at 11:24 AM.
GT3 Tim is offline   United_States
0
Reply With Quote
      08-26-2008, 10:24 AM   #5
ChinoOrtega
Captain
 
ChinoOrtega's Avatar
 
Drives: 991 C2S
Join Date: Apr 2007
Location: Guatemala

Posts: 604
iTrader: (0)

I deleted both secondary cats and resonators, not the best sound clip,
ChinoOrtega is offline   Guatemala
0
Reply With Quote
      08-26-2008, 11:23 AM   #6
GT3 Tim
Moderator
 
GT3 Tim's Avatar
 
Drives: 2008 E90 M3
Join Date: Feb 2008
Location: Sacramento, CA

Posts: 1,894
iTrader: (0)

Quote:
Originally Posted by ChinoOrtega View Post
I deleted both secondary cats and resonators, not the best sound clip,
Sounds pretty good actually!

You still have the stock mufflers on, right?
__________________
Tim (apparently likes "3" cars)
E90 M3 -- Current ride
2004 GT3 -- Sold
1997 M3/4 -- Sold
1995 M3 -- Sold
GT3 Tim is offline   United_States
0
Reply With Quote
      08-26-2008, 11:46 AM   #7
ChinoOrtega
Captain
 
ChinoOrtega's Avatar
 
Drives: 991 C2S
Join Date: Apr 2007
Location: Guatemala

Posts: 604
iTrader: (0)

yeah stock muffler, just cut off the resonators and secondary cats, and replaced the whole section with stainless steel pipe
ChinoOrtega is offline   Guatemala
0
Reply With Quote
      08-26-2008, 03:02 PM   #8
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Quote:
Originally Posted by GT3 Tim View Post
Z4Dave -- sounds good! That is ONLY a resonator delete, right? Stock mufflers are still on?

Sounds REALLY good to me...better than I thought.

Where in norcal are you? Would love to hear it in person!
Yes stock mufflers,

Im near SF
Z4dave is offline  
0
Reply With Quote
      08-26-2008, 03:54 PM   #9
GT3 Tim
Moderator
 
GT3 Tim's Avatar
 
Drives: 2008 E90 M3
Join Date: Feb 2008
Location: Sacramento, CA

Posts: 1,894
iTrader: (0)

They both sound great. It is a "cheap" mod for some great sound IMHO. I may try the resonator delete first....thanks for sharing fellas!
__________________
Tim (apparently likes "3" cars)
E90 M3 -- Current ride
2004 GT3 -- Sold
1997 M3/4 -- Sold
1995 M3 -- Sold
GT3 Tim is offline   United_States
0
Reply With Quote
      08-26-2008, 04:36 PM   #10
Kadarin
Ambassador of Crunk
 
Drives: SG/blk '08 E92 M3
Join Date: Apr 2008
Location: San Jose, CA

Posts: 606
iTrader: (0)

It would be interesting to hear what this sounds like in conjunction with some aftermarket systems.
Kadarin is offline   United_States
0
Reply With Quote
      08-26-2008, 05:29 PM   #11
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Quote:
Originally Posted by ChinoOrtega View Post
I deleted both secondary cats and resonators, not the best sound clip,
Post a better video if you can
Z4dave is offline  
0
Reply With Quote
      08-26-2008, 05:46 PM   #12
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Inside Resonator
Attached Images
 
Z4dave is offline  
0
Reply With Quote
      08-26-2008, 08:37 PM   #13
M2381
Major
 
M2381's Avatar
 
Drives: E92 M3, GTI
Join Date: Feb 2008
Location: FL

Posts: 1,287
iTrader: (0)

Hmm interesting. I am also looking to do exactly this but I really want to get rid of the muffler since its so big and ugly in the back! I saw a vid while back where a guy basically did straight pipes and magnaflow tips and it sounded like a F1 car
__________________
M2381 is offline   United_States
0
Reply With Quote
      08-28-2008, 12:36 PM   #14
Blip Bavarian
salivator
 
Blip Bavarian's Avatar
 
Drives: 991 C2S & E30 LS1
Join Date: Dec 2007
Location: El Paso, Texas

Posts: 523
iTrader: (0)

sounds great.

please post a vid once you have done the cat delete..
Blip Bavarian is offline   United_States
0
Reply With Quote
      08-28-2008, 03:37 PM   #15
IWC Doppel
Private First Class
 
Drives: 08 M3
Join Date: Jun 2008
Location: London

Posts: 176
iTrader: (0)

Does removing the secondary cats affect emission tests and MOT's that we have in the UK ?
IWC Doppel is offline  
0
Reply With Quote
      08-28-2008, 03:55 PM   #16
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Quote:
Originally Posted by Blip Bavarian View Post
sounds great.

please post a vid once you have done the cat delete..
Decided not to remove the cats until i hear it with a new muffler on

Quote:
Originally Posted by IWC Doppel View Post
Does removing the secondary cats affect emission tests and MOT's that we have in the UK ?
from what i`ve read the secondary cats are for cold startup so i would think once the main cats are warm there pretty much useless
Z4dave is offline  
0
Reply With Quote
      08-28-2008, 06:14 PM   #17
IWC Doppel
Private First Class
 
Drives: 08 M3
Join Date: Jun 2008
Location: London

Posts: 176
iTrader: (0)

Do you know what size tubing is correct for replacing the resonators ?
IWC Doppel is offline  
0
Reply With Quote
      08-28-2008, 07:39 PM   #18
ChinoOrtega
Captain
 
ChinoOrtega's Avatar
 
Drives: 991 C2S
Join Date: Apr 2007
Location: Guatemala

Posts: 604
iTrader: (0)

2.5" tubes all thru
ChinoOrtega is offline   Guatemala
0
Reply With Quote
      08-29-2008, 01:58 AM   #19
AlpenWhite25
Private
 
Drives: Alpen White BMW M3
Join Date: Oct 2007
Location: Thessaloniki,Greece

Posts: 59
iTrader: (0)

Is there any difference in performance?Does the car pulls harder without The cats and resonators????
AlpenWhite25 is offline   Greece
0
Reply With Quote
      08-29-2008, 04:10 PM   #20
Z4dave
First Lieutenant
 
Z4dave's Avatar
 
Drives: 2012 STI
Join Date: Apr 2008
Location: Castro Valley-NoR-CaL

Posts: 388
iTrader: (0)

Quote:
Originally Posted by AlpenWhite25 View Post
Is there any difference in performance?Does the car pulls harder without The cats and resonators????
If it does my Butt Dyno cant tell
Z4dave is offline  
0
Reply With Quote
      08-29-2008, 04:47 PM   #21
AlpenWhite25
Private
 
Drives: Alpen White BMW M3
Join Date: Oct 2007
Location: Thessaloniki,Greece

Posts: 59
iTrader: (0)

Quote:
Originally Posted by Z4dave View Post
If it does my Butt Dyno cant tell

I am not reffering to Dyno Data or any performance figures...The Main question is ,If you would be Deaf would you have felt any difference drivind the Car before and after the Delete of Cats and reconators....Thanks in advance for your responce...and...please excusse my bad English because it is not my Birth language...so....
AlpenWhite25 is offline   Greece
0
Reply With Quote
      09-01-2008, 02:38 AM   #22
The Shiekh
Second Lieutenant
 
The Shiekh's Avatar
 
Drives: E92 M3
Join Date: Jul 2008
Location: Danville, CA

Posts: 267
iTrader: (1)

Quote:
Originally Posted by AlpenWhite25 View Post
I am not reffering to Dyno Data or any performance figures...The Main question is ,If you would be Deaf would you have felt any difference drivind the Car before and after the Delete of Cats and reconators....Thanks in advance for your responce...and...please excusse my bad English because it is not my Birth language...so....
What he said meant no, he cannot tell a difference.

Good shit man I might do this. Do you go to any meets? Lemmy know so maybe I can see/hear it in person.
__________________
-James aka The Shiekh

2008 E92 M3 6MT SSII/Silver Novillo/Sycamore
BPU+ lol
The Shiekh 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 09:00 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