Images are linked from from impreza-net
http://www.impreza.gr.jp/masa/subar...3/peage001.html 
The bottom right STi has all the factory optional items loaded including the BBS rims.
changes on WRX STi:
aside from obvious exterior and interior changes,
Engine has been modified extensively.
This is the exhaust manifold. It is equal length and note that it is 4-2 not 4-2-1. The turbo is bigger and it is "twin scroll turbo" The exhaust comes in from two pipes.
Internal is stronger and the TGV has been eliminated from the intake manifold.
oh and it redlines at 8k RPM
Regular WRX gets smaller turbo for faster spool up.
The car is actually faster in 0-62mph by 0.5 sec. (about 6.5sec.)
It's got inverted shocks
front 4pot/rear 2pot combo
and 17 inch Euro WRX/NB-R/ex-B4 wheel
---- thread copied over from i-club---