F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > No Drone Aftermarket Exhaust
proTUNING Freaks
Post Reply
 
Thread Tools Search this Thread
      10-11-2019, 09:05 PM   #1
leeicedtea
New Member
0
Rep
13
Posts

Drives: BMW F30 328i
Join Date: Sep 2019
Location: Tampa, FL

iTrader: (0)

No Drone Aftermarket Exhaust

Hey there everybody!
I will soon be taking my f30 328i on a roadtrip across the US, making approximately 4k miles. As of right now, the car has had its muffler delete which resulted in a very annoying low RPM drone in highway cruising speeds. I am very reluctant to re-installing the OEM muffler seeing as I want to hear my car when it goes, at that being said, I don't want to hear it when i'm on a highway in control cruise at very low RPMs.

Is there any bang for your buck aftermarket muffler that would scream while in sports mode in hard acceleration, but be completely tame in eco pro/when cruising? - The M performance exhaust almost did it for me, but it is overall too tame for my liking.

Please note, I will also be installing a VRSF catless downpipe in the car soon.
Thank you guys!
Appreciate 0
      10-11-2019, 10:59 PM   #2
andino
Captain
462
Rep
682
Posts

Drives: F31 328i xdrive
Join Date: Jan 2019
Location: norcal

iTrader: (2)

MPE is prob going to be the best bet for low drone at highway speeds. I have a Remus and it def has a presence on the highway. Things will get worse after you put on a DP.

That said, probably any muffler you put on will reduce the drone at highway speeds when coming from no muffler at all.
__________________
2016 328ix F31 - SOLD!
2006 997.1 C4S
Appreciate 0
      10-12-2019, 12:08 AM   #3
Gen13 F36
Brigadier General
Gen13 F36's Avatar
United_States
1380
Rep
3,394
Posts

Drives: 428i Gran Coupe
Join Date: Nov 2017
Location: Los Angeles, CA

iTrader: (1)

Stock... absolutely no drone.... yup. Want something loud it has company by drone. MPE has some drone when you go catless or resonator delete. So no drone is just an imagination.
Appreciate 0
      10-12-2019, 01:25 AM   #4
chhappy7
Lieutenant
chhappy7's Avatar
120
Rep
591
Posts

Drives: 2015 328i RWD
Join Date: Mar 2018
Location: Hanover, NH

iTrader: (0)

Garage List
2015 328i  [0.00]
AWE with their mid pipe is a set up I heard has no drone. I will get that set up someday.
__________________
2015 328i - M3 style front bumper/fender/side skirt, M Sport rear bumper/diffuser, M Performance brakes, BBS SR, ceramic iDrive, LCI radio trim, 6WB, carbon fiber lip, X5M razor key
Appreciate 0
      10-12-2019, 08:22 AM   #5
Billfitz
Major General
Billfitz's Avatar
United_States
4321
Rep
9,898
Posts

Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

iTrader: (0)

Quote:
Originally Posted by Gen13 F36 View Post
Stock... absolutely no drone.... yup. Want something loud it has company by drone. MPE has some drone when you go catless or resonator delete. So no drone is just an imagination.
That's pretty much true. Mufflers are tuned to operate best at specific frequencies. The main muffler is going to be tuned to be most effective at the frequency that's loudest when the car is cruising, so if you remove it you're going to get drone. The secondary muffler, usually referred to as the resonator, is tuned to be most effective at the next loudest frequency, so if you remove it you'll get drone at that frequency. Therefore if you want louder without drone you can't just delete the muffler or resonator, you have to replace it with one that's louder overall but still tuned to the requirement for the car. It takes a lot of R&D to create an exhaust that is louder than stock without drone, at a cost that most aftermarket suppliers can't afford.
Appreciate 1
      10-12-2019, 09:58 AM   #6
hybris
Lieutenant
hybris's Avatar
Norway
179
Rep
499
Posts

Drives: BMW 330e F30 M-sport
Join Date: Oct 2008
Location: Norway

iTrader: (0)

Garage List
Not the same engine, but still a 2.0l BMW (B48): I replaced the rear muffler with this Magnaflow muffler: Almost no increased drone, pretty quiet during idle/cruise, loud during WOT: https://www.amazon.com/MagnaFlow-Exh.../dp/B000XQO0XY
__________________
Thorbjorn
16 BMW F30 330e M-sport
Bootmod3 Stage2 / BMS Intake / RM Motors high flow catted downpipe & custom exhaust / BBS CH 19" / H&R Sport springs
Appreciate 0
      10-12-2019, 12:52 PM   #7
Gen13 F36
Brigadier General
Gen13 F36's Avatar
United_States
1380
Rep
3,394
Posts

Drives: 428i Gran Coupe
Join Date: Nov 2017
Location: Los Angeles, CA

iTrader: (1)

Drone is really obvious driving on eco and comfort.

Btw, you seen those YouTube video with nice loud Lamborghini, porche, Ferrari and etc. All those have rediculous drone inside the cabin. Those are aftermarket exhaust.
Appreciate 0
      10-14-2019, 07:40 PM   #8
esoj37
Lieutenant
esoj37's Avatar
United_States
117
Rep
418
Posts

Drives: B58 F30 6MT RWD
Join Date: Feb 2017
Location: Baton Rouge

iTrader: (9)

I ran an ER catless DP, with an AWE resonated midpipe and an MPE, with absolutely no drone.
__________________
MG B58 F30
AP Intake, MPE & Stage 1 BM3
Appreciate 0
      10-14-2019, 08:27 PM   #9
Gen13 F36
Brigadier General
Gen13 F36's Avatar
United_States
1380
Rep
3,394
Posts

Drives: 428i Gran Coupe
Join Date: Nov 2017
Location: Los Angeles, CA

iTrader: (1)

Quote:
Originally Posted by esoj37 View Post
I ran an ER catless DP, with an AWE resonated midpipe and an MPE, with absolutely no drone.
This is exactly the best example of different perspectives of what a drone is. He's hearing range must be different from mine.

No way ...I run same setup awe quad exhaust and resonated midpipe but stock dp and there is drone between 1600 to 2200 rpm very noticeable driving on comfort but not much in sport.
Appreciate 0
      10-14-2019, 09:32 PM   #10
Billfitz
Major General
Billfitz's Avatar
United_States
4321
Rep
9,898
Posts

Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

iTrader: (0)

RPMs, and therefore the frequency of what's coming from the exhaust, are higher in sport than in comfort. That explains why the one drones while the other doesn't.
Appreciate 0
      10-15-2019, 06:47 AM   #11
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
237
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

Stock muffler plus cut out.
/thread
Appreciate 0
      10-15-2019, 08:59 PM   #12
rjd_F30
Brigadier General
rjd_F30's Avatar
United_States
1672
Rep
3,368
Posts

Drives: 2013 335i 6MT
Join Date: Jun 2017
Location: New Jersey

iTrader: (0)

Maybe try AWE? It should be a bit louder than MPE, but probably won't drone too bad. However, as others have mentioned it's really difficult to make it louder when on the throttle and not simultaneously introduce drone when not on the throttle.

A cutout, as CandyRedRC46 mentioned, could be a good option too, but those all leak to some degree (mine does very slightly) which may bother you.
__________________
Instagram: rjd_f30 | Current: 2013 335i 6MT RWD | Past: FBO 2013 328i xDrive 8AT |
Appreciate 0
      10-21-2019, 11:24 AM   #13
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
12649
Rep
136,755
Posts


Drives: 2007 e92 335i / 2013 F30 328
Join Date: Sep 2013
Location: Las Vegas

iTrader: (20)

REMUS full catback with stock downpipe has zero drone
__________________
Check Out Our Sale Section!
Phone 725-221-5267 || website www.x-ph.com

Appreciate 1
      10-28-2019, 02:49 AM   #14
leeicedtea
New Member
0
Rep
13
Posts

Drives: BMW F30 328i
Join Date: Sep 2019
Location: Tampa, FL

iTrader: (0)

Quote:
Originally Posted by mike@x-ph.com View Post
REMUS full catback with stock downpipe has zero drone
Well, I now officially have the VRSF catless downpipe installed in the vehicle. Am I out of luck when it comes to zero drone aftermarket systems? I was really hoping to find a valve system for the 328i, where I have the option of both a muffler or straight pipe. Unfortunately, there is none AFAIK.

Edit: I was thinking of adding a valved cutout right by the resonator, however, I wasn't able to find any reputable brands to accomplish this, neither did you guys' website have such options.

Last edited by leeicedtea; 10-28-2019 at 02:56 AM..
Appreciate 0
      10-28-2019, 10:46 AM   #15
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
12649
Rep
136,755
Posts


Drives: 2007 e92 335i / 2013 F30 328
Join Date: Sep 2013
Location: Las Vegas

iTrader: (20)

Quote:
Originally Posted by leeicedtea View Post
Well, I now officially have the VRSF catless downpipe installed in the vehicle. Am I out of luck when it comes to zero drone aftermarket systems? I was really hoping to find a valve system for the 328i, where I have the option of both a muffler or straight pipe. Unfortunately, there is none AFAIK.

Edit: I was thinking of adding a valved cutout right by the resonator, however, I wasn't able to find any reputable brands to accomplish this, neither did you guys' website have such options.
Add the REMUS axle back
__________________
Check Out Our Sale Section!
Phone 725-221-5267 || website www.x-ph.com

Appreciate 0
      11-01-2019, 08:32 AM   #16
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
237
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

I am catless downpipe and Dinan axle back. Zero drone. It is almost too quiet (except during cold start). In before Gen13 F36 accuses me of having a reduced hearing range.
Appreciate 0
      11-01-2019, 08:40 AM   #17
Gen13 F36
Brigadier General
Gen13 F36's Avatar
United_States
1380
Rep
3,394
Posts

Drives: 428i Gran Coupe
Join Date: Nov 2017
Location: Los Angeles, CA

iTrader: (1)

Quote:
Originally Posted by CandyRedRC46 View Post
I am catless downpipe and Dinan axle back. Zero drone. It is almost too quiet (except during cold start). In before Gen13 F36 accuses me of having a reduced hearing range.
Appreciate 1
      11-01-2019, 11:09 AM   #18
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
237
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

Is the drone you're referring to, at steady cruising or light throttle as well? I have just about zero exhaust noise while at steady speed & throttle, but light acceleration will produce some exhaust noise, though I wouldn't call it drone, as it is a pleasant sound that you can still easily speak over and doesn't cause any resonance. I would describe drone as a noise that resonates the cabin, vibrates the interior, is hard to speak over or is irritating/unpleasant to the ears.
Appreciate 0
      11-01-2019, 04:47 PM   #19
leeicedtea
New Member
0
Rep
13
Posts

Drives: BMW F30 328i
Join Date: Sep 2019
Location: Tampa, FL

iTrader: (0)

Quote:
Originally Posted by CandyRedRC46 View Post
Is the drone you're referring to, at steady cruising or light throttle as well? I have just about zero exhaust noise while at steady speed & throttle, but light acceleration will produce some exhaust noise, though I wouldn't call it drone, as it is a pleasant sound that you can still easily speak over and doesn't cause any resonance. I would describe drone as a noise that resonates the cabin, vibrates the interior, is hard to speak over or is irritating/unpleasant to the ears.
90% of the time I drive in eco pro or economy mode seeing as I commute on highways, when it comes to highway driving, there is a very irritating drone that causes the interior to shake, even so to the point that my mirror vibrates at 90+ mph. Switching to Sports or Sports+ raises the RPM to 3000 and that issue is entirely eliminated, however, I would like my car to be more economical on the highway (hence this thread). When it comes to city driving at anywhere from 0-45MPH there is no drone whatsoever, except when it comes to coming out of a complete stop, when my car is in the process of shifting through lower gears, the whole interior of the vehicle shakes.
Should've considered that before going basically straight piped.
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 03:27 PM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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