You are right you can go too far and it then needs to be a weekend hooning not daily traffic crawling commute.
Found all the info on the spec list mine had done, hope you don't mind me sharing, also a few snaps from the advert when i was stupid enough to sell her!!
Spec list
Exterior:
Gloss black grille moustache and fog surrounds
Litchfield Tuning red light film
Perrin 2" short aerial
STI Front splitter (not currently fitted)
Rays lightweight wheel nuts in blacl
18 x 8.5 Team Dynamics Pro Race 1.3 in anthracite
Subaru R205 side badges
Rally Armour black mud flaps
Zunsport upper and lower front grilles in black
Interior:
Pioneer SPH-DA100 AppRadio head unit - With bluetooth, hands-free, SATNAV, mobile internet and AVI player
Custom WC Lathewerks shift knob
JDM Subaru AV panel
Alcantara shift and handbrake boot
Engine:
Miltek 3" Turbo back sports cat exhaust
Ecutek remap carried out by Litchfield Imports
AEM cold air intake
Perrin radiator cover
Carbon fibre alternator cover
Brakes:
Porsche front brake kit conversion
AP Racing 2 piece grooved discs
HEL braided brake lines
EBC Bluestuff rear pads
Stoptech grooved rear discs
Handling:
Poweflex anti-lift & caster adjustable front arm bushes
Powerflex steering rack bushes
Summit front strut brace
Bilstein B16 PSS10 coilover suspension from Litchfield Imports (3 way adjustable including ride height, camber and damper setting)
Whiteline front anti-roll/sway bar
Whiteline rear adjustable anti-roll/sway bar
Whiteline four point front under-car brace
Whiteline rear sub-frame Inserts
Kartboy front and rear endlinks
Drivetrain:
Kartboy short shift kit
Kartboy front and rear shifter stay bushes
Whiteline rear diff Inserts
Litchfield Imports power steering re-valve
Enjoy yours mate looks a cracker again hope you don't mind me sharing mine, just reminded me how much i loved that car!