Has anyone heard of Racing Dynamics Downpipes for the s63? Can't seem to find anyone mentioning their fitment or sound quality. Found some local to me and I am wondering how they compare to the others mentioned on this thread! They look like they are legit and have a flex section.
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2013 E70 X5 M - SG
2001 E39 530i - M-Sport, MT,TB
2011 E93 335i - M-Sport, BSM
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