can someone tell me all of the differences in a canadian '01 426 compared to an american 426? i heard the silencer endcap, is it quieter? i have a friend that will lend me his american yz silencer off his 00 so i will use that. i heard tires were diff as well, what kind of tires are they? like int/soft/hard? are there any downfalls with these tires that you guys dont like? are there some differences im missing? thanks!