What's with the CAPS there pal, you looking for trouble?
The torrent you are viewing are scrubbed versions. A Wii disc contains a few different things:-
1) Update Area.
2) Game Data Area.
3) Crap data area.
Some games have a lot more crap than others, so Excitebots must have over 3GB of useless random rubbish data that is just padding the disc up to 4.37GB. Wiiscrubber removes this useless info and leaves us with the actual game.
Some games use only 200MB of game data.