fog lights on with parking lights (free if you have wire connectors and 6" of wire)
stubby antenna (~$10)
plasti-dip rear valence ($8)
sickspeed or hellahorns ($50)
others that i haven't done/don't have pictures of:
mazda6 wagon rear wiper (~$30) OR rear wiper delete
ebay intake w/k&n filter ($50?)
ebay exhaust ($130-$150)
side molding delete (free)
power windows always on (free)
FREE:
Bypass the hot coolant that flows through the throttle body... Icing has never been a problem - don't need it and and a cooler air inlet charge helps performance a weeee bit