[Xeno]

I, too, am concerned about the tint look matching from the outside when I take my X5 to a BMW recommended shop tomorrow.

I did not take notes, but I was told the factory rears on my X5 only tint at about 25%. However, if I go with 20% on the fronts apparently they would look uniform on the outside as the difference can be seen only from inside the vehicle.

I am reading forum threads trying to decide about tinting the sunroof and/or adding a windshield strip. Advice on all points would be welcome.

I think I had 20% on fronts of my 2012 X5 and I was happy with that.

Edited to add that my installer tells me he uses Johnson. When I asked about the windshield, he talked about something that would be rated at 77% and would not interfere with BMW electronics or my radar detectors. In terms of the sunroof, he suggested I go with the 'limo' tint.