Set of M6 mufflers with 3 1/2 inch quad tips modified to fit an F10. Everything mounts and alligns perfectly. Just have to cut off the old mufflers and mount these up. Took my exhaust shop 45 minutes to do. Looks great and has a nice deep sound. Looking for SOLD plus shipping obo.
Here's a video of the M6 mufflers on a 550i at cold start. This is not of my car but another forum member, but this is what it sounds like.