Thanks GlassSkinz for creating a unique product look. I purchased the Tekno 3 Louver. I installed it in 20 minutes. After prepping the rear glass and folding back parts of the 3M tape in certain locations, the louver went on with no major issues. It gives the Mustang a different look, a special look! And the view from inside looking through the rear view mirror is not obstructed. I had my eye on this product since last year, and I am satisfied I finally got it.