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does anyone here run a 2014 CP M5 with an eisenmann resonated centre pipe and race mufflers? I have been recommended this set up by Eisenmann uk, but would really like to hear it, or at least a soundclip of it. I have been assured no drone or too boomy, but a great sound over stock CP.... are the resonated/silenced Eisenmann centre pipes needed/recommended over keeping stock resonated pipes, if changing the mufflers to E-Race?
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