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
      06-16-2023, 04:57 PM   #1
TheProdigy
Private First Class
TheProdigy's Avatar
United_States
1029
Rep
173
Posts

Drives: G80 M3 Xdrive
Join Date: Feb 2018
Location: Los Angeles, CA

iTrader: (0)

AA midpipe + AA rear section

BIMMERPOST
     Featured on BIMMERPOST.com
Currently running an AA single midpipe with the AA rear section. Experience drone 1800-2k rpm and decent in cabin drone throughout. Wondering if anyone’s switched to the AA resonated midpipe and if there’s any drone they experience?
Appreciate 0
      06-16-2023, 07:51 PM   #2
njoyRice
Enlisted Member
njoyRice's Avatar
54
Rep
42
Posts

Drives: G80 M3C
Join Date: Sep 2022
Location: Houston

iTrader: (0)

Do you have downpipes?

I have catless dp + AA resonated single mid + stock muffler. I don't think the resonator does much with how small they are diameter wise. This setup w/ valves 100% open it drones. Valves closed the drone is reduced by ~90%.

I welded in 4.5" gesi cat right before the brace and it helped my drone and reduce the overall dB by a bit. I still close the valves on highway cruising though and the drone is basically 99% gone.

If you want to keep the AA muffler. I would suggest you either buy resonators from like vibrant or Aero and get them welded on. Or look into a different midpipe like Supersprint.

Last edited by njoyRice; 06-16-2023 at 07:57 PM..
Appreciate 0
      06-16-2023, 08:03 PM   #3
TheProdigy
Private First Class
TheProdigy's Avatar
United_States
1029
Rep
173
Posts

Drives: G80 M3 Xdrive
Join Date: Feb 2018
Location: Los Angeles, CA

iTrader: (0)

Quote:
Originally Posted by njoyRice View Post
Do you have downpipes?

I have catless dp + AA resonated single mid + stock muffler. I don't think the resonator does much with how small they are diameter wise. This setup w/ valves 100% open it drones. Valves closed the drone is reduced by ~90%.

I welded in 4.5" gesi cat right before the brace and it helped my drone and reduce the overall dB by a bit. I still close the valves on highway cruising though and the drone is basically 99% gone.

If you want to keep the AA muffler. I would suggest you either buy resonators from like vibrant or Aero and get them welded on. Or look into a different midpipe like Supersprint.
I have stock DP, appreciate the input
Appreciate 0
      06-17-2023, 11:28 AM   #4
FrankieNuo
Captain
FrankieNuo's Avatar
No_Country
1210
Rep
654
Posts

Drives: 23' G80
Join Date: Apr 2020
Location: NYC

iTrader: (0)

Garage List
2023 Bmw M3  [8.36]
Quote:
Originally Posted by TheProdigy View Post
Currently running an AA single midpipe with the AA rear section. Experience drone 1800-2k rpm and decent in cabin drone throughout. Wondering if anyone’s switched to the AA resonated midpipe and if there’s any drone they experience?
I recently had a single resonated midpipe with the AA rear section and dahler valve contoller. I experience slight drone and the same rpm range but minimal. I have since move to the equal length with no resonator and no more drone.
Appreciate 0
      06-17-2023, 01:45 PM   #5
TheProdigy
Private First Class
TheProdigy's Avatar
United_States
1029
Rep
173
Posts

Drives: G80 M3 Xdrive
Join Date: Feb 2018
Location: Los Angeles, CA

iTrader: (0)

Quote:
Originally Posted by FrankieNuo View Post
I recently had a single resonated midpipe with the AA rear section and dahler valve contoller. I experience slight drone and the same rpm range but minimal. I have since move to the equal length with no resonator and no more drone.
Mind posting some sound clips and maybe taking a video from the interior?
Appreciate 0
      06-17-2023, 08:50 PM   #6
FrankieNuo
Captain
FrankieNuo's Avatar
No_Country
1210
Rep
654
Posts

Drives: 23' G80
Join Date: Apr 2020
Location: NYC

iTrader: (0)

Garage List
2023 Bmw M3  [8.36]
Quote:
Originally Posted by TheProdigy View Post
Mind posting some sound clips and maybe taking a video from the interior?
Of course, what’s your Instagram? I’ll send it there. It’s not much, I still have to do some recordings, but should give you an idea
Appreciate 0
      06-17-2023, 08:52 PM   #7
TheProdigy
Private First Class
TheProdigy's Avatar
United_States
1029
Rep
173
Posts

Drives: G80 M3 Xdrive
Join Date: Feb 2018
Location: Los Angeles, CA

iTrader: (0)

Quote:
Originally Posted by FrankieNuo View Post
Of course, what’s your Instagram? I’ll send it there. It’s not much, I still have to do some recordings, but should give you an idea
It’s ProdigyM3, thanks so much!
Appreciate 0
      06-18-2023, 10:32 AM   #8
Schulminator
Second Lieutenant
Schulminator's Avatar
456
Rep
230
Posts

Drives: 2023 SSG G80 Xdrive
Join Date: Jan 2023
Location: Oviedo, FL

iTrader: (0)

I’ve had the AA EL on for a few weeks with stock axle back. Just switched out to the AA axle back, and it sounds amazing. It’s slightly louder at 1800-2k when cruising on the highway, but don’t think it’s drone, as it’s really not that noticeable. My old CTSV would echo through the car and rattle my eardrums.
Appreciate 0
      06-20-2023, 10:26 AM   #9
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
23794
Rep
190,150
Posts


Drives: 07-335/12-328/18-M4/21-M4CP
Join Date: Sep 2013
Location: Las Vegas

iTrader: (23)

That 200 RPM range is tricky with any exhaust setup. Some level of drone may be expected, but if it's excessively loud, it might be worth checking your installation.

I used the same setup for some time and didn't experience any intolerable drone at that specific RPM range.
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/

Phone number 702-494-9435
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 05:16 AM.




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