Exhaust question

JY01 · 11-11-2020, 08:48 AM

Will there be drone with a catless downpipe+resonator delete with stock muffler?

TYC · 01-18-2021, 08:08 AM

Yes.
Simplest answer is. Think of it like this.
resonator eliminates drone.
Muffler for volume and tone.

jb-slow · 01-18-2021, 11:57 AM

I have no drone with the muffler on, it actually doesn't sound all that different from stock.

n55d_more_alpine · 01-21-2021, 06:47 PM

I have a VRSF catless downpipe and the Dinan Resonator delete with the stock muffler on my m235i. I think it sounds great! I wouldn't say there was too much drone. Driving normally I sometimes notice some in the lower RPM's in low gears but its 100% bearable. And no drone at cruising speeds. Its not bad at all.

dag2929 · 01-25-2021, 07:51 PM

I also have a catless downpipe and a resonator with the stock muffler. The drone is very tolerable and I don't really notice it unless i listen for it.

colt.jw · 03-15-2021, 01:43 PM

Yes you will have drone, same with if you delete muffler. Try just going catless to see how you like that sound. There will mild drone going catless too.

BrettKA7 · 03-15-2021, 02:47 PM

I deleted both resonators on my M240i midpipe and there is zero drone whatsoever, as someone who is very, VERY sensitive to drone.

It does pop quite a bit in Sport mode. The amount of pops during deceleration wasn't expected.

11-11-2020, 08:48 AM	#1
JY01 JY01 685 Rep 299 Posts Drives: 2023 BMW M4 Competition xDrive Join Date: Feb 2018 Location: Florida iTrader: (0)	Exhaust question - will there be drone? Will there be drone with a catless downpipe+resonator delete with stock muffler?
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01-18-2021, 08:08 AM	#2
TYC Private 24 Rep 82 Posts Drives: 2015 M235i TE Join Date: Jun 2012 Location: Los Angeles / Toronto iTrader: (0)	Yes. Simplest answer is. Think of it like this. resonator eliminates drone. Muffler for volume and tone. __________________ @theyoungcarmody 2015 m235i track edition PTF / Bm3 n55 dev car / brand ambassador Cscs time attack - street rwd Who says a race car can’t also be a show car?!?!
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01-18-2021, 11:57 AM	#3
jb-slow First Lieutenant 111 Rep 337 Posts Drives: m235i Join Date: Mar 2019 Location: puyallup iTrader: (0)	I have no drone with the muffler on, it actually doesn't sound all that different from stock.
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01-21-2021, 06:47 PM	#4
n55d_more_alpine New Member 2 Rep 5 Posts Drives: 2014 BMW M235i Join Date: Sep 2019 Location: Houston iTrader: (0) Garage List 2014 BMW M235i [0.00]	I have a VRSF catless downpipe and the Dinan Resonator delete with the stock muffler on my m235i. I think it sounds great! I wouldn't say there was too much drone. Driving normally I sometimes notice some in the lower RPM's in low gears but its 100% bearable. And no drone at cruising speeds. Its not bad at all.
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01-25-2021, 07:51 PM	#5
dag2929 Registered 0 Rep 3 Posts Drives: 2015 bmw m235i Join Date: Jan 2021 Location: Los Angeles iTrader: (0)	I also have a catless downpipe and a resonator with the stock muffler. The drone is very tolerable and I don't really notice it unless i listen for it.
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03-15-2021, 01:43 PM	#6
colt.jw colt.jw 0 Rep 2 Posts Drives: BMW M235 Join Date: Mar 2021 Location: OCEANSIDE iTrader: (0)	Yes you will have drone, same with if you delete muffler. Try just going catless to see how you like that sound. There will mild drone going catless too.
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03-15-2021, 02:47 PM	#7
BrettKA7 Captain 567 Rep 776 Posts Drives: F22 M240i Join Date: Jun 2017 Location: Huntington Beach iTrader: (0)	I deleted both resonators on my M240i midpipe and there is zero drone whatsoever, as someone who is very, VERY sensitive to drone. It does pop quite a bit in Sport mode. The amount of pops during deceleration wasn't expected. __________________ M240i \| Mineral White \| Coral Red
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