Using this Dialed Cobb AP Mount is a breeze. It's a direct replacement for the defrost vent on your 2015+ Impreza. There's no need to cut, drill, or modify anything. Just grab the holder from your AP mount and you're good to go as we've included all the other necessary parts. When it comes to maintenance, since it's 3D printed, you can simply wipe it clean with a soft cloth. Make sure not to use any harsh chemicals as they might damage the mount. Enjoy using your new mount hassle - free!