Too much exhaust bass

JL947 · 02-18-2020, 10:48 AM

Anyone experienced aftermarket systems with too much bass on low end?

The Bimmerworld axle back currently on my car has bass levels way too high for my taste. I'm looking for a way to modify the mufflers to reduce bass resonance in the cabin, making the V8 sing without sound like it has a hand covering its mouth and all I hear from the inside are deep mumbles.

Any suggestions would be appreciated.

darkbmw · 02-18-2020, 01:10 PM

Quote:

Originally Posted by JL947

Anyone experienced aftermarket systems with too much bass on low end?

The Bimmerworld axle back currently on my car has bass levels way too high for my taste. I'm looking for a way to modify the mufflers to reduce bass resonance in the cabin, making the V8 sing without sound like it has a hand covering its mouth and all I hear from the inside are deep mumbles.

Any suggestions would be appreciated.

Quad resonator will help major

BayE30 · 02-18-2020, 01:43 PM

What you are referring to is known as DRONE. Many aftermarket exhausts will drone pretty badly. Some are more sensitive to it than others.

Are you running an Xpipe, or all factory aside from the Bimmerworld mufflers?

JL947 · 02-18-2020, 05:36 PM

Quote:

Originally Posted by SFCM3

What you are referring to is known as DRONE. Many aftermarket exhausts will drone pretty badly. Some are more sensitive to it than others.

Are you running an Xpipe, or all factory aside from the Bimmerworld mufflers?

Ah, so this is the infamous droning on these cars I've heard about. It can be pretty unbearable at times.

The car came with a Macht Shnell X-Pipe.

JL947 · 02-18-2020, 05:37 PM

Quote:

Originally Posted by darkbmw

Quad resonator will help major

As opposed to the double mufflers is what you're suggesting?

BayE30 · 02-18-2020, 05:43 PM

Quote:

Originally Posted by JL947

As opposed to the double mufflers is what you're suggesting?

No hes referring to the Xpipe. The Macht Schnell pipe is very loud. You should consider replacing that Xpipe with one that has 4 resonators instead of the 2 that are there now.

wfdeacon88 · 02-18-2020, 06:55 PM

Corsa has zero drone.

Helmsman · 02-18-2020, 11:47 PM

OP, no experience from this particular muffler but it sounds like it doesn't have resonators (or Helmholtz chambers when built in, like for instance our OEM mufflers). Had the same exact experience with a Borla S system (while Atak has helmholtz), crazy bassy up to 2-2.5 k rpm. Terrible I thought, sold it to a guy who loved it. Bottom line, don't think its worth messing about with, get another muffler.

ES BMW · 02-19-2020, 03:15 PM

A stock Xpipe will fix that. You can always get test pipes if you want to remove the main cats and run a stage 2 tune.

02-18-2020, 10:48 AM	#1
JL947 Private 9 Rep 62 Posts Drives: 08 E90 M3 - Melbourne Red Join Date: Dec 2015 Location: Michigan iTrader: (1)	Too much exhaust bass - Need tips on modifying Anyone experienced aftermarket systems with too much bass on low end? The Bimmerworld axle back currently on my car has bass levels way too high for my taste. I'm looking for a way to modify the mufflers to reduce bass resonance in the cabin, making the V8 sing without sound like it has a hand covering its mouth and all I hear from the inside are deep mumbles. Any suggestions would be appreciated. __________________ 2008 Melbourne Red M3 E90 2020 Jeep Gladiator Rubicon 2019 Alfa Romeo Giulia 2016 Shelby GT350 2015 428i M Sport
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02-18-2020, 01:43 PM	#3
BayE30 Lieutenant Colonel 1341 Rep 1,881 Posts Drives: 2011.75 E90 M3 ZCP Join Date: Jul 2014 Location: San Francisco iTrader: (5)	What you are referring to is known as DRONE. Many aftermarket exhausts will drone pretty badly. Some are more sensitive to it than others. Are you running an Xpipe, or all factory aside from the Bimmerworld mufflers? __________________ I am never able to post pictures on forums, all my pics are on IG @baye30 https://www.instagram.com/baye30/ Current Garage - [2011 E90 M3 ZCP] [2005 E53 X5 3.0 Sport] [1988 E30 325IS 24V]
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02-18-2020, 06:55 PM	#7
wfdeacon88 Major 1105 Rep 1,389 Posts Drives: E90 M3 Join Date: Sep 2018 Location: Triad, NC iTrader: (0)	Corsa has zero drone.
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02-18-2020, 11:47 PM	#8
Helmsman Major General 4465 Rep 7,110 Posts Drives: 2011 AW E90 M3 ZCP Join Date: Mar 2014 Location: Stockholm, Sweden iTrader: (0)	OP, no experience from this particular muffler but it sounds like it doesn't have resonators (or Helmholtz chambers when built in, like for instance our OEM mufflers). Had the same exact experience with a Borla S system (while Atak has helmholtz), crazy bassy up to 2-2.5 k rpm. Terrible I thought, sold it to a guy who loved it. Bottom line, don't think its worth messing about with, get another muffler.
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02-19-2020, 03:15 PM	#9
ES BMW Captain 68 Rep 883 Posts Drives: '12 E92 M3 ZCP 6MT Join Date: May 2007 Location: South Florida iTrader: (3)	A stock Xpipe will fix that. You can always get test pipes if you want to remove the main cats and run a stage 2 tune.
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