Where can I buy the Mach 1 graphics for my 04 yz450? Also I am looking at getting aftermarket side case covers. Where can I get them and which ones are the best? I like the ones that I've seen on some 450's which are like a dull grey. I've seen them on some of the pro's bikes. They look as if they are a rough material and they are not painted which means that they will not show wear like the stock ones do from your boots rubbing on them.