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  #11  
Old 05-13-2010, 08:14 AM
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The reason it has the sound that it does is due to the firing order, turbos, their positioning (in the engine valley) and the way the exhaust headers are made. The headers have the cylinders that are 180 out in firing order are paired up to the turbo to get the smoothest and fastest spooling of the turbos.

But to illustrate the affect of the firing order I can use Chevy as an example... The 4.3l V6 is basically the 350ci V8 missing 2 cylinders, with the firing order at 1, 6, 5, 4, 3, 2. It can sound just like a V8 at idle with exhaust work done. While the 3.1l/3.3l/3.6l etc. that they use in cars have a sequential firing (1,2,3,4,5,6) order which gives them a very different exhaust tone with no depth, that smooth sound with no rumble.

To get a bit deeper rumble in the X5M you could simply ad an x-pipe or crossover pipe somewhere in the system switching to larger diameter pipe after it.... but I wouldn't want a larger pipe before or after the turbo system that would affect spool time.
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  #12  
Old 05-13-2010, 10:23 AM
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Would like to see a video of the Eisenmann Sport, Eisenmann Race and Super Sprint....those seem to be the three available now.
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  #13  
Old 05-14-2010, 05:04 AM
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Trips - come on do I need to start or in order to get a proper update here?!

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  #14  
Old 05-16-2010, 01:48 PM
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IND pics by Nate





Eisenmann installed



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  #15  
Old 05-17-2010, 03:44 AM
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It really look nice ...

I would like to hear your feedback about the feeling of the car response and the difference of engine behavior after pressing the M button , coz i changed mine to hamann and the feeling of the car is different.

::You can see that there is no golf tee blockage on the 2nd exhaust .. same with hamann ::
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  #16  
Old 05-18-2010, 10:32 AM
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very nice
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  #17  
Old 05-20-2010, 08:56 AM
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Eisenmann defo looks good and sounds imho better than Supersprint/Hamann.
we need to see what a full turboback exhaust upgrade will do,
any plans from Eisenmann on full exhaust system?
Last edited by Iluxa; 05-22-2010 at 05:06 AM.
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  #18  
Old 05-25-2010, 03:42 PM
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Here's a link to the professional video:

Eisenmann X5M/X6M Race performance video! - XBimmers.com | BMW X6 Forum X5 Forum

_Tom

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Last edited by LeMansX5; 06-02-2010 at 09:43 PM. Reason: Fixed YouTube codes
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  #19  
Old 06-02-2010, 03:45 PM
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Ilia sent this to me the other day.



I am headed down to IND on Monday to have the truck lowered. No exhaust yet.

marc
Last edited by LeMansX5; 06-02-2010 at 09:42 PM. Reason: Fixed YouTube codes
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  #20  
Old 06-02-2010, 09:44 PM
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Originally Posted by 998M View Post
Ilia sent this to me the other day.



I am headed down to IND on Monday to have the truck lowered. No exhaust yet.

marc
Not bad, considering you can't go that fast on that road they are taping video. let me know when you get the exhaust.
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