M perf dB? - BMW 3-Series Forum (F30 / F32)

RadRyDawg · 01-30-2013, 04:57 PM

Who can quantify how loud the M perf exhaust is?

shivaswrath · 01-30-2013, 11:47 PM

82db

justinnum1 · 01-31-2013, 01:35 PM

Quote:

Originally Posted by shivaswrath

82db

really?

Jackson743 · 01-31-2013, 11:45 PM

I picked my 335i with M-Performance Exhaust two days ago. I've only got 200 miles on it, but it's disappointingly quiet. I hope it breaks in and gets louder.

justinnum1 · 02-01-2013, 11:55 PM

Quote:

Originally Posted by Jackson743

I picked my 335i with M-Performance Exhaust two days ago. I've only got 200 miles on it, but it's disappointingly quiet. I hope it breaks in and gets louder.

it will get a little louder, but not much.

shivaswrath · 02-02-2013, 12:01 AM

Quote:

Originally Posted by justinnum1

Quote:

Originally Posted by shivaswrath

82db

really?

At WOT...measured using an app from my drivers chair.

shivaswrath · 02-02-2013, 06:34 PM

Mind you that's with windows up its 78-82db at WOT.

Idle is about 50db.

Windows down is probably much higher.

It's not too bad...but clearly not obnoxiously loud.

RadRyDawg · 02-05-2013, 12:04 PM

Quote:

Originally Posted by shivaswrath

Mind you that's with windows up its 78-82db at WOT.

Idle is about 50db.

Windows down is probably much higher.

It's not too bad...but clearly not obnoxiously loud.

Thank you!

01-30-2013, 04:57 PM	#1
RadRyDawg Enlisted Member Drives: '13 F30 335i MS-EB MT Join Date: Jul 2012 Location: CT Posts: 41 iTrader: (0)	M perf dB? Who can quantify how loud the M perf exhaust is? __________________ Ryan '13 335i EB MT
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01-30-2013, 11:47 PM	#2
shivaswrath Lieutenant Colonel Drives: 2012 335i Join Date: Apr 2008 Location: Norwalk CT Posts: 1,989 iTrader: (2)	82db __________________ 2012 335i Mineral Gray M Performance Whore: PPK\|Exhaust\|Brakes\|Performance Suspension Struts & Springs\|Black Kidney Grilles\|CF Spoiler and Mirror Caps\|M Sport 400M\|BMWF30.com 335i brakes FS!

02-02-2013, 06:34 PM	#7
shivaswrath Lieutenant Colonel Drives: 2012 335i Join Date: Apr 2008 Location: Norwalk CT Posts: 1,989 iTrader: (2)	Mind you that's with windows up its 78-82db at WOT. Idle is about 50db. Windows down is probably much higher. It's not too bad...but clearly not obnoxiously loud. __________________ 2012 335i Mineral Gray M Performance Whore: PPK\|Exhaust\|Brakes\|Performance Suspension Struts & Springs\|Black Kidney Grilles\|CF Spoiler and Mirror Caps\|M Sport 400M\|BMWF30.com 335i brakes FS!

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01-31-2013, 11:45 PM	#4
Jackson743 First Lieutenant Drives: 335i M-Sport/EBII/ED 12/5 Join Date: Aug 2012 Location: Ventura County, CA Posts: 371 iTrader: (0)	I picked my 335i with M-Performance Exhaust two days ago. I've only got 200 miles on it, but it's disappointingly quiet. I hope it breaks in and gets louder.