BMW M3 and M4 - The Icons
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
home
Technical Sections Engine / Drivetrain / Exhaust / Bolt-ons / Tuning

Post Reply
 
Thread Tools Search this Thread
      12-05-2021, 12:13 PM   #45
supershaft
Lieutenant
777
Rep
553
Posts

Drives: 992 GT3, Cayenne Turbo
Join Date: Mar 2013
Location: nj

iTrader: (0)

Quote:
Originally Posted by schumacher86 View Post
How's the fuel smell with these catless dps? Do you notice it more at idle?
it's gonna stink like hell. i have sport cats and the smell is awful.
Appreciate 0
      12-05-2021, 12:15 PM   #46
supershaft
Lieutenant
777
Rep
553
Posts

Drives: 992 GT3, Cayenne Turbo
Join Date: Mar 2013
Location: nj

iTrader: (0)

Quote:
Originally Posted by Vic55 View Post
your call but this is my 200 dollar hack job on the existing exhaust. I sold this blue one but did the same thing to my AR car.




I just got this lip from RW in Anaheim on my AR car:

out of all the clips ive seen so far for the G80 this sounds the best. Nice!
Appreciate 1
Vic5518965.50
      12-05-2021, 12:33 PM   #47
Taunto
Car Enthusiast
Taunto's Avatar
Canada
282
Rep
501
Posts

Drives: 2016 BMW M235 X-drive
Join Date: Apr 2011
Location: Regina

iTrader: (0)

bmw spends millions of dollars to reduce cabin oise and we just slap on down pipes and mufflers to bring that noise back
__________________
2016 M235 - Melbourne Red
2005 BMW M3 - Sold
Licensed Automotive technician for BMW Regina
Appreciate 1
jmg18493.00
      12-05-2021, 03:02 PM   #48
schumacher86
Enlisted Member
United_States
53
Rep
41
Posts

Drives: G80 Comp xDrive
Join Date: Feb 2011
Location: Volunteer State

iTrader: (0)

Quote:
Originally Posted by supershaft View Post
it's gonna stink like hell. i have sport cats and the smell is awful.
Did you get rid of the secondary cats as well? Or just replace the primary OE cats with high flow and keep the secondaries?
__________________
992 C2S w/ PCCB, Sport Package & Premium Package
2023 X5 xDrive45e Alpine White on Coffee
Appreciate 0
      12-05-2021, 04:47 PM   #49
supershaft
Lieutenant
777
Rep
553
Posts

Drives: 992 GT3, Cayenne Turbo
Join Date: Mar 2013
Location: nj

iTrader: (0)

Quote:
Originally Posted by schumacher86 View Post
Did you get rid of the secondary cats as well? Or just replace the primary OE cats with high flow and keep the secondaries?
on my m5 i got rid of the secondaries. on my 911 i have sport cats and it stinks.

the m5 doesn't smell that much there is a hint of it in the air but it's perfectly acceptable.

on the m3 i'd definitely advise on keeping the stock cats in place
Appreciate 0
      12-05-2021, 07:36 PM   #50
NCG80M3
First Lieutenant
NCG80M3's Avatar
662
Rep
364
Posts

Drives: 2019 F90 M5 Comp
Join Date: Jan 2019
Location: Charlotte, NC

iTrader: (0)

Garage List
  [5.00]
2019 BMW M5 Competi ...  [9.65]
Quote:
Originally Posted by TheMadMax View Post
Are you a part of BMC? I think I see you at Cars and Coffee sometimes. Sick color.
I go to there meets sometimes. Yeah I always go to cars and coffee. Parked by the EuroMpire tent.
__________________
19" BMW F90 M5 Comp
Utku Noa 93 Tune: 700hp/680tq
Check out my Socials: https://solo.to/whatsyourforte
Appreciate 1
      12-05-2021, 07:38 PM   #51
NCG80M3
First Lieutenant
NCG80M3's Avatar
662
Rep
364
Posts

Drives: 2019 F90 M5 Comp
Join Date: Jan 2019
Location: Charlotte, NC

iTrader: (0)

Garage List
  [5.00]
2019 BMW M5 Competi ...  [9.65]
Quote:
Originally Posted by elkid23 View Post
What taillights are those on OP’s car? Really cool
GTS Taillights. You can get them from EuroKalsse also with my code. Other places have them also.
__________________
19" BMW F90 M5 Comp
Utku Noa 93 Tune: 700hp/680tq
Check out my Socials: https://solo.to/whatsyourforte
Appreciate 0
      12-05-2021, 07:42 PM   #52
NCG80M3
First Lieutenant
NCG80M3's Avatar
662
Rep
364
Posts

Drives: 2019 F90 M5 Comp
Join Date: Jan 2019
Location: Charlotte, NC

iTrader: (0)

Garage List
  [5.00]
2019 BMW M5 Competi ...  [9.65]
Quote:
Originally Posted by Pravs21 View Post
Thanks for sharing. Sounds awesome. I see that you live in Charlotte. I'm over by the stadium. I just picked up a 2022 x3m comp.
thank you. Yep I am in the Steele Creek area but work uptown.

congrats on the new ride.
__________________
19" BMW F90 M5 Comp
Utku Noa 93 Tune: 700hp/680tq
Check out my Socials: https://solo.to/whatsyourforte
Appreciate 1
Pravs21152.00
      12-05-2021, 07:43 PM   #53
NCG80M3
First Lieutenant
NCG80M3's Avatar
662
Rep
364
Posts

Drives: 2019 F90 M5 Comp
Join Date: Jan 2019
Location: Charlotte, NC

iTrader: (0)

Garage List
  [5.00]
2019 BMW M5 Competi ...  [9.65]
Quote:
Originally Posted by supershaft View Post
it's gonna stink like hell. i have sport cats and the smell is awful.
I only smell it when the car has been sitting in one spot over 2 mins. Even then it is light. I still have the secondary cats on tho.
__________________
19" BMW F90 M5 Comp
Utku Noa 93 Tune: 700hp/680tq
Check out my Socials: https://solo.to/whatsyourforte
Appreciate 0
      12-05-2021, 07:56 PM   #54
________
________
4157
Rep
2,301
Posts

Drives: ________
Join Date: Sep 2018
Location: ________

iTrader: (0)

Quote:
Originally Posted by NCG80M3 View Post
Quote:
Originally Posted by elkid23 View Post
What taillights are those on OP’s car? Really cool
GTS Taillights. You can get them from EuroKalsse also with my code. Other places have them also.
TH are "GTS" taillights?
Appreciate 0
      12-06-2021, 12:46 PM   #55
Info@mad-us.com
BimmerPost Supporting Vendor
Info@mad-us.com's Avatar
1831
Rep
4,795
Posts


Drives: bmw
Join Date: Mar 2021
Location: Mad-us.com

iTrader: (0)

Awesome Video. Glad you like them

Quote:
Originally Posted by NCG80M3 View Post
Hello everyone,

I have recently installed the MAD downpipes that I got from Euroklasse. The price of $399 was very enticing. The welds on the pipes were good and the fitment was spot on. I also got some 02 mini cat spacers to deal with the CEL and so far so good. I did have my shop, EuroMpire weld some 02 bungs on the end of the spacer so the 02 sensor would not hit the mini cat. I have some sound clips in the video below.

I was able to get a discount code for anyone that maybe interested.

WYF5 for 5% off

Link to downpipes : https://euroklasse.com/products/mad-...=jC3rKtB2vk6SD


__________________
- Click Here
Performance Parts For Your Bmw At Crazy Low Prices!
Email: info@mad-us.com
Appreciate 1
NCG80M3662.00
      12-07-2021, 08:52 PM   #56
LukeM15
Captain
LukeM15's Avatar
United_States
560
Rep
991
Posts

Drives: M3 G80 Comp Xdrive
Join Date: Nov 2016
Location: Maryland

iTrader: (4)

Quote:
Originally Posted by NCG80M3 View Post
Sounds great James.

Now the spacers don’t work UNLESS you add that extra piece?
Appreciate 0
      12-08-2021, 12:52 AM   #57
jmg
Lieutenant General
jmg's Avatar
18493
Rep
14,085
Posts

Drives: G82 M4C X-Drive
Join Date: Mar 2013
Location: Orange County, CA

iTrader: (1)

Garage List
2022 G82 M4C X-Drive  [9.83]
2018 F80 M3 CS  [9.83]
2019 i3 BEV  [0.00]
Quote:
Originally Posted by Taunto View Post
bmw spends millions of dollars to reduce cabin oise and we just slap on down pipes and mufflers to bring that noise back
Lol we're funny that way
__________________

2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect*, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing
Previous • 2018 F80 ///M3 CS • 2016 F80 ///M3
IG: Raging_G82
Appreciate 0
      12-14-2021, 12:20 PM   #58
Steve @Euroklasse
United_States
3
Rep
14
Posts

Drives: Z4 GT3 & G80M3 & G07 X7
Join Date: Sep 2021
Location: San Diego

iTrader: (0)

Can't go wrong with Mad products. awesome vid James!
Appreciate 1
NCG80M3662.00
      12-16-2021, 09:47 AM   #59
croman54321
New Member
croman54321's Avatar
United_States
9
Rep
19
Posts

Drives: 2021 bmw m4 g82, bmw x5 g05
Join Date: Jan 2012
Location: NJ

iTrader: (0)

I have the same set up. Do you think I could get away with out having the extra piece welded on. I'm having my downpipes installed next week
Appreciate 0
      12-16-2021, 03:24 PM   #60
NCG80M3
First Lieutenant
NCG80M3's Avatar
662
Rep
364
Posts

Drives: 2019 F90 M5 Comp
Join Date: Jan 2019
Location: Charlotte, NC

iTrader: (0)

Garage List
  [5.00]
2019 BMW M5 Competi ...  [9.65]
So in regards to the extra bung that my shop installed. I have been told by other users that they did not install that and have had no issues. My shop did not feel comfortable with the O2 sensors touching the mini cat inside the spacer so they installed the extra bung. I think you will be fine either way.
__________________
19" BMW F90 M5 Comp
Utku Noa 93 Tune: 700hp/680tq
Check out my Socials: https://solo.to/whatsyourforte
Appreciate 0
      12-16-2021, 04:57 PM   #61
spicoli024
Lieutenant
spicoli024's Avatar
United_States
430
Rep
597
Posts

Drives: 2021 M3 COMPETITION
Join Date: Mar 2009
Location: Houston, TX

iTrader: (0)

Thanks for the video, and being offering your car as the Guinea pig for this system. Sounds great, lots of growl without the rasp--just what I'm looking for. Few quick questions:

1. In what mode were you running while on the test drive (sport plus with valves open the whole time)?

2. Does the installation of these downpipes affect the operation of any of the OEM engine or valve settings? In other words, can it still run in efficient mode with the valves closed so the kid can sleep in the back?

3. At 9:10 in the video, you hear the first gurgling crescendo of the backfire. Does this happen all the time when you back off the throttle at high RPMs?
__________________
2021 ///M3 Competition
2018 BMW M3 Competition | 2009 BMW E60 M5 | 2008 Audi B7 RS4 | 2006 BMW E46 M3 ZCP | 2003 BMW M3 CP
Appreciate 0
      12-19-2021, 01:47 PM   #62
NCG80M3
First Lieutenant
NCG80M3's Avatar
662
Rep
364
Posts

Drives: 2019 F90 M5 Comp
Join Date: Jan 2019
Location: Charlotte, NC

iTrader: (0)

Garage List
  [5.00]
2019 BMW M5 Competi ...  [9.65]
Quote:
Originally Posted by spicoli024 View Post
Thanks for the video, and being offering your car as the Guinea pig for this system. Sounds great, lots of growl without the rasp--just what I'm looking for. Few quick questions:

1. In what mode were you running while on the test drive (sport plus with valves open the whole time)?

2. Does the installation of these downpipes affect the operation of any of the OEM engine or valve settings? In other words, can it still run in efficient mode with the valves closed so the kid can sleep in the back?

3. At 9:10 in the video, you hear the first gurgling crescendo of the backfire. Does this happen all the time when you back off the throttle at high RPMs?
Thank you,

1) Test drive was in sport plus valves open the entire time.

2) No, you can still close the valves and the car is pretty quiet in comfort mode. You only can hear more noise under full throttle or high RPMs.

3) It does not do it all of the time just when you back off throttle at high RPMs. The burbles are louder tho. You can actually hear them now.
__________________
19" BMW F90 M5 Comp
Utku Noa 93 Tune: 700hp/680tq
Check out my Socials: https://solo.to/whatsyourforte
Appreciate 0
      12-19-2021, 10:30 PM   #63
spicoli024
Lieutenant
spicoli024's Avatar
United_States
430
Rep
597
Posts

Drives: 2021 M3 COMPETITION
Join Date: Mar 2009
Location: Houston, TX

iTrader: (0)

Thanks James!
Appreciate 1
NCG80M3662.00
      12-20-2021, 08:07 AM   #64
SickGTR
Banned
1082
Rep
949
Posts

Drives: 1000whpGTR/ F-82 YAS
Join Date: Dec 2018
Location: Dirt Jerz

iTrader: (0)

Quote:
Originally Posted by Patton250 View Post
That was awesome. As usual. I do have a question though. Why do down pipes hurt your warranty but mid pipes and exhaust systems don’t?
Normally when you are doing the DP a tune is needed. That brings the voided warranty. I personally would not do that mod till you have proper tuning. To each their own! I also would not run catted DP. Leave the cats somewhere else.
Appreciate 0
      12-20-2021, 01:32 PM   #65
Info@mad-us.com
BimmerPost Supporting Vendor
Info@mad-us.com's Avatar
1831
Rep
4,795
Posts


Drives: bmw
Join Date: Mar 2021
Location: Mad-us.com

iTrader: (0)

Quote:
Originally Posted by Steve @Euroklasse View Post
Can't go wrong with Mad products. awesome vid James!
__________________
- Click Here
Performance Parts For Your Bmw At Crazy Low Prices!
Email: info@mad-us.com
Appreciate 1
NCG80M3662.00
      12-20-2021, 01:35 PM   #66
tom @ eas
BimmerPost Supporting Vendor
tom @ eas's Avatar
United_States
8058
Rep
18,786
Posts


Drives: BMW
Join Date: Nov 2005
Location: Anaheim, CA

iTrader: (19)

Garage List
2018 BMW i3s  [0.00]
2010 BMW M3  [6.50]
2015 BMW M4  [5.25]
Quote:
Originally Posted by SickGTR View Post
Normally when you are doing the DP a tune is needed. That brings the voided warranty. I personally would not do that mod till you have proper tuning. To each their own! I also would not run catted DP. Leave the cats somewhere else.
You can absolutely be flagged for aftermarket DPs.

If one is at all worried about warranty, take the safe route and don't mod until warranty is expired.
__________________
Tom G. | european auto source (eas)
email: tom@europeanautosource.com · web: https://europeanautosource.com· tel 866.669.0705 · ca: 714.369.8524 x22

GET DAILY UPDATES ON OUR BLOG · FACEBOOK · YOUTUBE · FLICKR · INSTAGRAM
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 02:39 PM.




g80
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