Maybe an aftermarket fly wheel weight to make the power more controlable in the woods. A new pipe that would help with more bottom end. Some examples might be a FMF gnarly or FMF fatty. You could always put some serious money into the engine and go to eric gorr and get the engine ported for torque. Basicaly if you modify the engine always make sure that you can get more bottom end out of it for woods and tight trails it will come in handy quite often. Skid plates, handgards,aftermarket handlebars, plusher seat, a set of tires of choice for your terrain, all the little things add up and you should be able to ride the trails easir and more comfortably in no time.