Quote:
Originally Posted by gray550
I used to own a C63 and I think it was faster than my 550iX Dinan stage 2. However, it's difficult to tell because I am judging by seat of the pants feel and not timed runs. The sound of the C63 makes it feel faster, whereas the 550i is so quite and smooth. I think the 550 with the Dinan tune is deceptively fast.
I also had a GT-R prior to my 550 and it is, without any doubt, much quicker in every aspect.
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The Eisenmann race exhaust certainly helps the BMW get some of the "AMG effect".