535I Remus quad exhaust on 6er GC

[BMWF06]

Hello guys, so I got 535i f10 Remus exhaust thinking its gonna be pretty much straight fit, Looks like pipe on left side muffler of Remus has different shape than right side and looks like there is no way to just cut old and fit as Remus pipe point different direction. Anybody has same or similar experience? Also I got M6 diffuser so now Im wondering the plastic bracket behind the bumper wich holds also stock m sport bottom part needs to be removed, is there anything else what needs to be added instead? I seen on realoem there is some shock absorber instead? Thank you