Quote:
Originally Posted by zhthomas
I had a 2008 M5 for three years. The rattle from the M4 exhaust is different than a metallic undertone. My dealer listened to the rattle and concluded a new exhaust is necessary. For those interested, I will keep you posted on whether the new exhaust solves the problem.
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Not sure how bad it is, seems to be a brute force method and might not solve anything, maybe consider waiting a bit to see if others are noticing it before going down this path