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I have a question in relation to loud exhausts etc, I previously had a 340i M and it had a M-Performance exhaust system on it. In sport mode when the valve was open it was distinctly louder, pops bangs, burrs. I have a just take owner ship of a M6GC and it also has a M-Performance exhaust but is much quieter than my 6 cycler. Is this normal?
Also is the M-Performance Exhaust made by Ackropovic as I have seen some threads saying it is.
Thanks for you help in advance.
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