Very easy install on my 2006 Mini Cooper S Hatchback. Literally 30 seconds at a time, all you need is a flat head screwdriver to pry the clips to remove the old ones and then simply slide the new ones into place which will snap into place with an audible pop. My sunroof no longer tries to fall on my head, when I press the button to open the sunroof the door quickly lifts itself, very happy with this product, it was money well spent.