So I keep hearing about how poor it turns and how mellow the 05 YZ450F is compared to the other years. So here's the question: What would it take to get an 05 to have the same amount if not more power than any of the current model's? Would a high compression piston alone to it? Or what about a piston exhaust combo? Also, do you think with the right springs for a given riders weight, a good revalve, and DRD radiator lowering kit, that an 05 could handle as well as one of the new bikes? I've always wondered how a modified older bike would stack up against a newer stock bike.