I have been working on my 2018 Impreza Hatch, especially in the cosmetic department, and I have been looking around to see if its possible to replace/add the turn signal in the side mirrors on the base model. I know that some newer Imprezas have the turn signal built in, but I was going to see if there is an aftermarket option or possible straight from the Subaru parts website and add those on. OR if its even possible to add those in lol