This may get some people riled up but I have noticed that every eight cylinder MB I have owned it sounds better from the factory than any stock eight cylinder BMW I have owned. MB dials in the exhaust note fairly well from the factory and when equipped with a valved exhaust it is almost perfect in terms of conservative when needed and spirited or more lively when desired. Why does BMW have difficulty with this and the inability to suppress the shift burps on their 4cyl/6cyl applications?
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