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      06-26-2014, 07:36 PM   #1
C5ry
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Exhaust noise level

How loud is your exhaust and what type? I was wonder what decibel rating different exhaust are
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      06-27-2014, 06:31 AM   #2
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I Install MagnaFlow Resonator-Back Exhaust System in my BMW M3 Coupe. It increased performance, Fuel efficiency, sound is good and moreover increase horsepower and torque.
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      06-27-2014, 08:54 PM   #3
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I Install MagnaFlow Resonator-Back Exhaust System in my BMW M3 Coupe. It increased performance, Fuel efficiency, sound is good and moreover increase horsepower and torque.
Do you know how loud it is decibel rating? I know iphone has a free app to measure it.
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      06-27-2014, 09:02 PM   #4
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Eisenmann Race 95db moving/102db stationary
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      06-27-2014, 09:36 PM   #5
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Quote:
Originally Posted by C5ry View Post
How loud is your exhaust and what type? I was wonder what decibel rating different exhaust are
The beginning of the video should give you some idea of what dB you're dealing with. Stock rating 90dB and Eisenmann Race 95dB, but it's measure at idle only

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      06-28-2014, 05:16 AM   #6
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My Eisemann race is really loud. I like it, but long distance it can get slightly annoying, especially early in the morning.
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      06-28-2014, 05:18 AM   #7
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Quote:
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Eisenmann Race 95db moving/102db stationary
Is that outside or inside the car?
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      06-28-2014, 07:16 AM   #8
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ACM Custom Modded Exhaust is a great system. I actually came from a E Race, a Black Series to be specific with connecting pipes. The drone killed me because i couldn't have a normal conversation over the bluetooth and things just got annoying over time. Let me tell you something your not wasting your time on this ACM setup because 1 is it cheap and 2 no drone with a great tone/sound. The loudness is the same as E race but with no drone as i wanted. Price for me doesn't matter Cheap or Expensive.
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      06-28-2014, 09:04 AM   #9
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Quote:
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Is that outside or inside the car?
That's a good question. I'm not sure I got it off of iND's website
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      06-28-2014, 10:40 AM   #10
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Quote:
Originally Posted by MTrezzz View Post
ACM Custom Modded Exhaust is a great system. I actually came from a E Race, a Black Series to be specific with connecting pipes. The drone killed me because i couldn't have a normal conversation over the bluetooth and things just got annoying over time. Let me tell you something your not wasting your time on this ACM setup because 1 is it cheap and 2 no drone with a great tone/sound. The loudness is the same as E race but with no drone as i wanted. Price for me doesn't matter Cheap or Expensive.
It's a muffler delete setup plain and simple. Save the money and weight and do muffler delete pipes versus the acm mod
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      06-28-2014, 10:55 AM   #11
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Quote:
Originally Posted by EJT86 View Post
That's a good question. I'm not sure I got it off of iND's website
I would hope that's outside, because inside of the car should be high 60's to 70's stock, lol.

EDIT:
Cruising speed at 85mph in top gear is 78db. Full throttle is 85db.

These are all in-cabin ratings.
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      06-29-2014, 10:31 PM   #12
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Macht schnell xpipe which deletes primary and secondary cats and uuc/Corsa axel back exhaust. Outside it's tame when cruising and loud and high pitched when you punch it. Interior is almost no drone, it is an amazing sounding exhaust.
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      06-30-2014, 11:29 AM   #13
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I just installed akrapovic evo system. At idle and measuring it with a free app and it was about 80 db from about three feet away
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      07-02-2014, 10:56 AM   #14
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Quote:
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I just installed akrapovic evo system. At idle and measuring it with a free app and it was about 80 db from about three feet away
Can you measure from the inside at highway cruising speed, please?
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      07-02-2014, 11:09 AM   #15
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I know full ipe is about 126 db
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      07-02-2014, 05:55 PM   #16
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Can you measure from the inside at highway cruising speed, please?
Yes, I'll try to get it this weekend
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