This was an awesome mod to my car...I ahd gone back and forth about whether this was something I really needed and would it enhance the overall look of my car. I ordered some other louvers, but when they arrived, they were flimsy and I was NOT happy with the finish of the ABS plastic. I returned them and ordered the Glassskinz louvers...I am so glad that I did...they are much more "Low Profile" than other louvers and were much better quality. I loved the look...the fit and the finish...I reommend using the adhesion promoter abundatly...not beacause there is anything wrong with the tape, but rather...it makes for a rock solid installation...this is a great product that I would recommend to any car enthusiast...I am going to order the "Backdraft" louver for my 2011 Charger...