I don't have any pics... but I have 15mm Rogue spacers and it looks good. If I did it again, I would probably do 20mm all around, but I heard 15mm is the safe max. The best part though, is how much better the X corners. =)
Oh, by the way, I have front fender flares too, which is why I decided to get the spacers.

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2022 X5M Comp Dravit Grey/Full Silverstone
Previous:
2018 M5 Black/Full Silverstone
2015 X5M Donington Grey/Full Silverstone
2010 X5M Space Grey/Full Silverstone
2003 4.6is Silver/Black