Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > 5 Series DIY

5 Series DIY
Knowledge Is Power! ~ The place for do-it-yourself threads on a variety of topics. Start a thread describing a particular job (oil change, cooling system overhaul, brakes, shocks and springs, etc.) or search for one you need help with!

Reply
 
Thread Tools Display Modes
  #1  
Old 10-06-2003, 08:03 PM
kowached kowached is offline
Officially Welcomed to the 'Fest
Location: MI
 
Join Date: Jun 2003
Posts: 77
Mein Auto: 1998 540iA Sport
Aftermarket 540i Catalytic Converter Info

DIY Forum was looking kind of weak, thought I'd add a nugget of info.

If you are looking for aftermarket Catalytic Converters on your E39 540i, here are some options:

Carsound 53005 2.25" in/out, round body, no air, $67/each: http://www.exhaustproslinc.com/carrounbodun.html

Or you could pay more for the IDENTICAL converter with a polished case, Carsound makes Magnaflow, they are the same thing.

Magnaflow 54305 2.25" in/out, round body, no air, $80/each: http://www.exhaustproslinc.com/magpolstains1.html

Make sure that you exhaust guy is very comfortable with blind welding in tight spots, otherwise make him drop the system to ensure that there are no leaks around the converters. Leaks may throw the O2 sensors off. I doubt that you will find a good welder at anyplace besides a custom exhaust shop, the guys at Midas and Minekie probably are not cut out for this job.

If you don't know of a really good local exhaust guy, here is decent place to start: http://www.magnaflow.com/03dealer.htm

So here are your choices:
- $600/side for BMW Cats + installation.
- $67/side for Carsounds + $100-$150 for installation.

I can tell you to avoid IMCO Cats in a 540i, I had a pair of IMCO High Flow Cats (75115) installed once. The drivers side converter started rattling within 3 weeks, the ceramic brick was loose from the metal casing. I went back to the shop and had Carsounds (53005) installed, like they should have had them do originally (but thatís another story). The owner was apologetic and said that he was just trying to get his customer the best value, just tipped the welder $20, otherwise no charge for the Carsounds.

IMCO Cats: http://www.imcoweb.com/
__________________
bimmerfest 5-Series Welcome

Later,
Dave

E39 - 1998 540iA Sport (11/97 Production)
E30 - 1989 M3 (44k miles)
1979 Triumph TR7, still have my first car ;-)
Past cars:
E21 - 1980 320i (sold at 130k)
E23 - 1986 735i

Avatars under the signature are MUCH more prestigious than to the left of the post...
Reply With Quote
Advertisement
  #2  
Old 10-07-2003, 02:59 AM
avionics12 avionics12 is offline
I'm Eating My Head
Location: In a state of perpetual confusion
 
Join Date: Jun 2003
Posts: 115
Mein Auto: 07 335i Coupe
[QUOTE=kowached]DIY Forum was looking kind of weak, thought I'd add a nugget of info.


Thanks Dave. It seems that most of the DIY posts have been going to the main section-I'm guilty of it . I am hopeful that with the new influx of DIY's from around the net we can build a significant and useful DIY section. Your E39 welcome page is a great reference and I hope to see it here.
__________________
07 335i Coupe.
Reply With Quote
  #3  
Old 10-20-2003, 08:17 PM
vietsb's Avatar
vietsb vietsb is offline
Trying to top 1K posts...
Location: Bay Area, CA
 
Join Date: Apr 2003
Posts: 269
Mein Auto: 89 E30 325i, 97 E39 540iA
Quote:
Originally Posted by kowached
If you are looking for aftermarket Catalytic Converters on your E39 540i, here are some options:
Thx Dave. I'll be doing the CarSound's pretty soon. Hey, you have any info on people installing 2.5" inlet/outlet into our cars? Rev was telling me to choose those at one point. I've got a little more exhaust than normal leaving my car, but don't know if the 2.5" with larger custom tubing all the way back is really necessary. Let me know if you remember any discussion of that.
__________________

E39 DIY Site: BMWdiy.INFO
E30 DIY Site: E30.BMWdiy.INFO
BMWTips: BMWTips.com


Reply With Quote
  #4  
Old 10-21-2003, 11:34 AM
kowached kowached is offline
Officially Welcomed to the 'Fest
Location: MI
 
Join Date: Jun 2003
Posts: 77
Mein Auto: 1998 540iA Sport
You could run the 2.5" converters, but everything in front of and behind the converter (until the pipes join) is 2.25". It would be easy enough to change everything behind the converter to 2.5", but I'm not sure that it would be worth it unless you increased the pipe diameter (headers?) in front of the converters. I think that M Wong (E38 RF) went with the 2.5" converters, but had trouble down the line. See if he has anything else to provide.

Have you considered measuring backpressure while under load to see where you are currently at?
__________________
bimmerfest 5-Series Welcome

Later,
Dave

E39 - 1998 540iA Sport (11/97 Production)
E30 - 1989 M3 (44k miles)
1979 Triumph TR7, still have my first car ;-)
Past cars:
E21 - 1980 320i (sold at 130k)
E23 - 1986 735i

Avatars under the signature are MUCH more prestigious than to the left of the post...
Reply With Quote
  #5  
Old 03-22-2007, 05:43 AM
Franktea Franktea is offline
Registered User
Location: NYC
 
Join Date: Dec 2004
Posts: 46
Mein Auto: 1997 540i Sport
Hey Guys,

I put the Carsound 53005's on my 1997 540i yesterday, i am having some misfire issues on the engine. Has anyone else used this model cat with success?

Frank
__________________
1997 540i, removed CDV & Air Intake Silencer, Added clear lights all around, 2001 540i rims, no cats, dual three inch exhaust!
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > 5 Series DIY
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump


All times are GMT -7. The time now is 08:22 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms