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So I went to my friend's dealership, Forman Motorsport, in Phoenix yesterday (http://formanmotorsport.com/). He has a 2006 M5 with a custom exhaust that he wanted switched out for stock system. Since we had some time on our hands we drove both M5s to a local shop he uses. About an hour and a half later and $285 I now have this system installed on my M5. :cheers:

Sorry about the vid, but it was taken from an old camera in mpeg1 format and I don't know to edit all the dead time out. ouich

The closest I can get to describing this system (sections 1, 2, and 3 with secondary cats and resonator removed) in terms of sound is a F430 with open valves all the time. There is drone at lower rpm and screaming above 4000 rpm. :1:

The car is getting dyno'd on Tuesday after an RPI pulley is installed. I really don't think the exhaust added much of anything except noise. :applause:

http://www.youtube.com/watch?v=vdspvv_qog0

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Your custom exhaust sounds really good, beefy
 

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Agree with others. But that does sound damned great.
 
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