Going to try to start a list of things that are a need to do for your hawk if it hasn't already been done. Well from anything i've gathered the snow tracker and updated ski and anti stab kit. On the older hawks the 02's and 03's the 503's had no heated grips which are very nice for any type of riding. I personally have a 02 503 and it has some updates done to it but there are alot of things you can do to these things to make them really perform better than stock. The 600's basically are just about updated there are some things you can do to these also along with the 800's i hope one day to own a 600.
