I've only just got it, and it's my first subaru, so i'm still learning all the in's and out's.
So far the only mod I've done is a K&N cabin filter (VF2000) but i have more planned and will post some pics as i go.
Done
K&N cabin filter (VF2000)
EDIT: done, grille chrome changed to black.
EDIT: done, Visaton replacement 8" sub upgrade (http://www.soundlabsgroup.com.au/p/V-9064-W200/W+200+-+4+Ohm)
EDIT: done, K&N intake panel filter (33-2304)
EDIT: done, AVO mufflers https://youtu.be/ObrKFdW0JfI
EDIT: Eyelids
EDIT: Nav hack done
EDIT: Kobe throttle body hose
Planned (nothing huge):
AVO Exhaust manifold
Tune
SuperPro poly or group N bushes
Shockworks coilovers
front lip
chassis brace (front/rear)
whiteline sway bar kit front/rear, bushes, endlinks etc keeping stock bias (BSK015)
whiteline ball joints and tie rods (KCA313)
new rims (preferably black sti's).... 18"/19"?