So I made a few small improvements recently:
-Desnorkel. I really loved the difference in sound from the intake and couldn't care less if it affected mpg (which I don't think it has)
-Replaced Broken A/C vent
-Added hella supertone horns because mine were completely dead. (btw there were two perfect spots behind the metal bumper that the horns bolted to symmetrically.
-New Alpine speakers in dash
-Replaced broken visor mirror covers and removed airbag warning stickers
-I have a smoked LED third brake light and White LED bulbs for the trunks, interior, and license plate on the way
-I also got a flex orbital buffer with some polishes and pads from the chemical guys to really make the car shine.