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545i with new RPI GT axleback exhaust

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Old 02-12-2011, 05:04 PM
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While the car sounds great with a cold start, it drones much more than I expected it would between 1000 - 2200 rpm, even with the windows up.

Anyone in the north side of Chicago with a similar setup willing to meet up and see if it's just my car that sounds this way, or do all E60 V8s sound this way with the RPI, Eisenman, or Magnaflow?

I'm hoping my family gets used to this, as I'd hate to give it up!
Working on a video to capture the essence of what I'm feeling and hearing.
Old 02-12-2011, 07:52 PM
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Originally Posted by PilotAce
While the car sounds great with a cold start, it drones much more than I expected it would between 1000 - 2200 rpm, even with the windows up.

Anyone in the north side of Chicago with a similar setup willing to meet up and see if it's just my car that sounds this way, or do all E60 V8s sound this way with the RPI, Eisenman, or Magnaflow?

I'm hoping my family gets used to this, as I'd hate to give it up!
Working on a video to capture the essence of what I'm feeling and hearing.
My RPI drones from 1,500 - 2,000 rpm. Driving in DS helps avoid the low rpms.
Old 02-13-2011, 02:37 PM
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Sounds normal. 1500-2000 RPM's is the sweet spot for the droning. I hear it with my Magnaflow setup. You'll get used to it after awhile. It seems to be a characteristic of the V8's regardless of which aftermarkey exhaust you go with. Some may be better than others I have heard. I can only comment on my Magnaflow setup. These cars have a lot of torque down low.
Old 02-13-2011, 02:42 PM
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how many miles do you have on your rpi exhaust?
Old 02-13-2011, 05:05 PM
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Seriously? I have less than 25 miles on it so far...
Old 02-13-2011, 05:07 PM
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Yea that's normal, but trust me, you'll get used to it after a while. If not, RPi offers silencer inserts I believe. You would have to contact Eloy@RPi for those.
Old 02-13-2011, 05:07 PM
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Originally Posted by PilotAce
Seriously? I have less than 25 miles on it so far...
from what I've heard and read, the drone decreases after you've put some miles on it......
Old 02-13-2011, 05:08 PM
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Originally Posted by GENEaTALS
from what I've heard and read, the drone decreases after you've put some miles on it......

+1
Old 02-13-2011, 05:28 PM
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I'll give it another 200 miles or so... My ears may get used to it, but wife rides in it with me once/week, so she'll be the one who notices if the car becomes a little more quiet...

they make silencers for these, really? Found the link for them...

http://www.m5board.com/vbulletin/m5-...silencers.html


Krozi, congrats on your RPI race exhaust... AWESOME video! I didn't hear any droning in your vid, like I hear in my car. That M3 of yours is white hot, and you can hear it waayyyy before you can see it coming!
Old 02-13-2011, 09:07 PM
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I've got about 600 miles on mine now and the drone is still there 1000-2000 RPM.


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