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      02-23-2013, 12:56 AM   #7

Rob///M5's Avatar
Drives: 2013 M5 SSII
Join Date: Aug 2012
Location: San Diego

Posts: 1,342
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2013 BMW M5  [5.00]
Extremely different sounds and noise levels.

Akra = subtle and exotic
E-Race = loud menacing roar

Personally, my vote would be Eisenmann Race - mufflers only. Much louder and half the price of the akra.

You need to go hear both in person. As soon as you experience them, you will know which is right for your taste.