HI, My name is Jordan, i am 5"2, and 130 pounds. I have sold my XR100. Got a new '06 KX 100. BIG DIFFERENCE! Anyways, its been half a year im riding, and i put my bike away for the winter. I drive STRICTLY MX. I have two local motocross tracks, one of which i am intending of racing some friendly matches with 125's. And, my birthday has just passed and i have collected a good 700$. My bike basically NEW. My father and i are very good at maintenance. I'd just like to know some simple mods that can get some bang for my buck. (E.G, pipes, air filter, reed valves, handlebars ect.) I would like some advice asap so when i take my bike out in the spring, i can put on the mods and start racing! THX for helping.