Muffler Delete drone options!

gvaldes13 · 02-20-2014, 05:16 PM

Today I had my muffler deleted on my 07 e92 335i. My mods are bms downpipes, dci, and jb4. The drone is really unbearable and I am wondering what my options are (resonator, aftermarket muffler etc). I know I can put my oem muffler back but that means I literally wasted all that money. Thanks

boom · 02-20-2014, 05:29 PM

Google side branch resonators or helmholtz resonators. It'll cost you for fab and parts but it works and keeps the exhaust loud where you want it.

gvaldes13 · 02-20-2014, 06:01 PM

Thanks I appreciate it. Do you by any chance have sound clips?

Mit_Boost · 02-20-2014, 06:22 PM

Not surprised at all. Get your OEM Mufflers installed and see if ACM can mod them for you (remove some of the muffler internal-sound deadening material) or look at rear section exhaust like the Billy Boat or UUC/Corsa.

N0Chill 335i · 02-20-2014, 09:15 PM

Drive above 80... lol.
But in all seriousness, not much you can do about the drone with a muffler delete. I know because I've done it as well. It eventually gets a lot better but the 1st few weeks are pretty brutal, especially if you drive mostly highway. Cold starts are loud as hell and between 2200 and 2600 RPM you will want to kill yourself. Once the car warms up it's a lot better too. I'm working on a custom exhaust set up with some Resonaters and J pipes. Once it's done I'll upload a sound clip.

02-20-2014, 05:16 PM	#1
gvaldes13 New Member 2 Rep 20 Posts Drives: Space Grey/Coral Red 335i e92 Join Date: Oct 2012 Location: Central NJ iTrader: (0)	Muffler Delete drone options! Today I had my muffler deleted on my 07 e92 335i. My mods are bms downpipes, dci, and jb4. The drone is really unbearable and I am wondering what my options are (resonator, aftermarket muffler etc). I know I can put my oem muffler back but that means I literally wasted all that money. Thanks
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02-20-2014, 05:29 PM	#2
boom My X5d tows my spec miata to the track. 74 Rep 1,254 Posts Drives: 2010 X5 35d Join Date: Sep 2009 Location: USA iTrader: (0)	Google side branch resonators or helmholtz resonators. It'll cost you for fab and parts but it works and keeps the exhaust loud where you want it.
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02-20-2014, 06:01 PM	#3
gvaldes13 New Member 2 Rep 20 Posts Drives: Space Grey/Coral Red 335i e92 Join Date: Oct 2012 Location: Central NJ iTrader: (0)	Thanks I appreciate it. Do you by any chance have sound clips?
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02-20-2014, 06:22 PM	#4
Mit_Boost Captain 135 Rep 692 Posts Drives: E90 335 Join Date: Dec 2013 Location: NJ iTrader: (0)	Not surprised at all. Get your OEM Mufflers installed and see if ACM can mod them for you (remove some of the muffler internal-sound deadening material) or look at rear section exhaust like the Billy Boat or UUC/Corsa. __________________ Results >
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02-20-2014, 09:15 PM	#5
N0Chill 335i Colonel 850 Rep 2,771 Posts Drives: 13' F30 335i M Sport AW Join Date: Nov 2011 Location: MD iTrader: (2)	Drive above 80... lol. But in all seriousness, not much you can do about the drone with a muffler delete. I know because I've done it as well. It eventually gets a lot better but the 1st few weeks are pretty brutal, especially if you drive mostly highway. Cold starts are loud as hell and between 2200 and 2600 RPM you will want to kill yourself. Once the car warms up it's a lot better too. I'm working on a custom exhaust set up with some Resonaters and J pipes. Once it's done I'll upload a sound clip.
	Appreciate 0 Quote