I didnt run the 3m under the wheel well lip. To many cracks and crevices to work around, i have just accepted that those will get beat up.
The factory mud flaps will definitely help, just dont look great.

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2013 X5 5.0 - M Sport, M Performance, Black Saphire, Black Nevada.
Previous -2011 5.0 Msport Titanium Silver, 2008 X5 4.8 BS, sport, 214's, black Nappa.