It's a cat and mouse game. It used to be mufflers, intakes and removing CATs. Now its more sophisticated. You can't blame BMW for protecting their financial well being. If you want zero risks and issues , do not modify your vehicle. The one thing I was told by a tech is that X5 drivers can get away with more since they are not considered targets for tuners. But I'm sure if you went in with a serious issue, they would look.

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2013 X5 Xdrive35i Premium
2013 F30 328i
2004 Mustang GT Very Modded...