Wastegate rattle
i did downpipes on my E63 W213 and few kilometeres later some kind of mettalic sound started.
after a long time of checking, i saw that the sound came from the wastegate.
(it's the exact same problem on many M5 F10 with catless)
i saw a thread regarding this issue on the forum but no solution to stop this noise.
is there any real solution (without changing the turbos of course :-). )
thanks


