OK you Guru's of the Singletrack & Mud. :eek: I ride an old 1990 KDX with FMF pipe, silencer combo, airbox mod, Renthals, Stock carb 152/48 CEL. Runs Decent with no major problems. In fact it's been stone reliable. My Question is the New 200/220 That much of an improvement to make worth the extra $2000. I ride with New KDX's all the time & old Reliable goes everywhere just as fast. Drawback is nice new wiz-bang goodies are hard to find or non-existant. I guess I'm trying to justify the expense. Thanks for your input. :yeehaw: