I don't know why it's illegal, but it is. That's why you don't see any in Canada. Google it, and I'm sure you can find out. No, it can't be made legal, but you may be able to get one of the really old Evo versions, but you'll need to research that within Canadian law.
To get an idea on beginner mods, go to our guided upgrade page here on EvoM in the Tech section:
http://www.evotuners.net/tech.php