Well, the things I have added to my Levorg so far should be here I think.
*Auto lock module : a simple box which locks the door when the car reaches 15km/h
*Auto mirror folding module: folds the side mirrors on lock and opens them on unlock.
*Mirror lowering module: lowers the right side mirror on reverse which makes it easier to backup.
*Auto window roll up/down module: rolls up the windows when I lock the car. It also opens them remotely which is not a bad thing in hot summer days.
*TDI tuning chip: I have not put it to a Dyno test yet but you can feel the extra power and torque.
*A better sound system of course. If you are looking for your own space to enjoy some of your favorite tunes while on the road, you must get a decent sound setup.
*Auto sunroof closer module: still trying to locate one. so far , no luck.
*Blue side mirror lenses: I want to get a pair of these but not yet. I think they will be a great addition to Levorg.
*Rally armor mud flaps: I got red ones installed on my ice silver Levorg and they look phenominal. 2015 WRX+ ones fit with minor modification.
I can help you get these parts,feel free to contact me.