I have a 325 e from 1987 and its not the quietest engine, but that is its normal state. I dont quite remember what it originally sounded like since I have added a K&N high flow air filter, changed the catalyst and exhaust. One thing is for sure though, inline 6s are the best.
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"Only two things are certain: the universe and human stupidity; and I'm not certain about the universe."
-- Albert Einstein
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