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
 
Post Reply
 
Thread Tools Search this Thread
      07-04-2009, 10:00 PM   #23
Poppin Fresh
Colonel
Poppin Fresh's Avatar
Philippines
85
Rep
2,148
Posts

Drives: With a sunroof and front plate
Join Date: May 2009
Location: Bergen County NJ

iTrader: (0)

You might have to take your car to the gynecologist. It could have gonorrhea! j/k

They're right bout it the chemical reactions though. The cats do filter out the chemical breakdown of the gasses coming out. I would hate to be behind you with my windows down sucking on that unfiltered toxic M3 fumes. But I'm sure it hella sounds good!
Appreciate 0
      07-04-2009, 10:08 PM   #24
dcstep
Major General
United_States
1290
Rep
7,389
Posts

Drives: '09 Cpe Silverstone FR 6MT
Join Date: Nov 2008
Location: Colorado

iTrader: (0)

Garage List
2009 M3  [8.40]
BTW, prior to the cats the exhaust is about 900-degrees F while after the cats the temps reach around 1300 F. That's speaking generically. The M3 may be more or less.

Dave
__________________
Appreciate 0
      07-04-2009, 10:39 PM   #25
Jonmartin
Banned
Jonmartin's Avatar
United_States
119
Rep
2,097
Posts

Drives: E90 M3
Join Date: Nov 2005
Location: Los Angles (818)

iTrader: (1)

Dont think it has to do with heat i had some kind of residue noticeable on my black car. After a rain it looked like water spots only on the back said of the car bumper taillights and trunk all had it. I tried everything even claybar to clean it off nothing worked. But someone told me to use vinegar/water mixed 50:50 and wipe it off with a microfiber. Well I didn't have that on hand but I did have some Windex with Vinegar and i sprayed that on it and it wiped right off. Just like brand new again no more spots after that.
Appreciate 0
      04-16-2018, 11:27 AM   #26
kyrix1st
Colonel
kyrix1st's Avatar
2351
Rep
2,359
Posts

Drives: G87 M2; E92M3 MT&DCT; M3 euro
Join Date: Sep 2014
Location: nyc

iTrader: (0)

Garage List
2004 BMW Z4  [0.00]
It's a disaster with AW, but it's a trade off for a nice exhaust sound and bump in hp.
__________________
Pass me if you can.
Appreciate 0
      04-16-2018, 07:43 PM   #27
dparm
Stop the hate, get a V8
dparm's Avatar
United_States
3848
Rep
8,625
Posts

Drives: C7 Corvette GS, AMG C63 S
Join Date: Jun 2013
Location: Frisco, TX

iTrader: (1)

Let's see, removing the cats...

1. makes the car sound tinny/raspy
2. makes it smell like shit (well, sulphur)
3. pollutes more
4. requires coding to ignore CEL
5. won't pass emissions in any state, especially those with visual

And now we can add number 6, "covers the bumper in yellow grime." Remind me again why you would want to remove a cat converter? For a few horsepower at WOT at redline?
__________________
Now: 2017 Corvette Grand Sport, 2021 AMG C63 S sedan
Past: 2011.5 M3 sedan ZCP
Appreciate 0
      04-17-2018, 08:20 AM   #28
aswy6
Captain
aswy6's Avatar
261
Rep
769
Posts

Drives: 2016 BMW M3
Join Date: Jan 2017
Location: Austin, TX

iTrader: (1)

I am cattles for about 3 month now. Sometimes when the wind blows from behind and my door/window is open i get a nice smell of unburned fuel. Every time i smell it, i feel like i shorten my life by couple of weeks haha. This weekend i was waxing the car and i noticed that the wax would not work on the rear bumper, the applicator would slide super easily and wax would turn into a weird color. I also live in the state where no emissions are required so i cam drive around cattles as long as i want to The sound is awesome as well.
Appreciate 0
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



All times are GMT -5. The time now is 05:10 AM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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