U.S. vs Japanese WRX

Could someone list the changes Subaru made to the WRX when they brought it to the U.S. or point me to a site listing them? Thanks.

There several models in Japan, but the one closely resembles the US spec WRX is called NB with 250hp and 17 inch wheels.

The changes are:

The sterring wheel changed sides (duh..)
The Momo steering wheel(we have the little logo, they have the siver badge)
The stereo system (Kenwood vs. I don't know what)
The seats (they have semi-racing looking seats, we got the base model Impreza seats)
AVCS (Active Valve Control System)
A slightly alrger turbo running slightly higher boost
17 inch wheels

These are probably it. The STi has more goodies, but too many to list and too hurtful to mention
:(

goto www.subaru.co.jp