Hey guys please respond to this.I have a 2001 400ex with a Pro Circuit Pipe and some bent Renthal bars. What should i get next for my 400? The tires are worn pretty well,but they still hook up. I ride woods and will occasionaly ride at a MX track, so what is the next mod to get,nerfs,skids,tires? Nothin over 500 dollers though. Thanks,Tree