Quote:
Originally Posted by sxychubles
It sounds bitchin if you know its normal, otherwise it sounds like its getting no oil and the bank account is getting emptied
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So the S65 is NOT a smooth engine like mostly all of the straight 6 predecessors. The headers are stainless steal and noisy. When I traded my 335 in for my M3, I swore I had an exhaust leak at 25,000 miles but no. This motor has been called a sewing machine for good reason.