This is what I have done so far. Dialed in the jetting for the high Colorado elevation(5200 ft.), and put in the V Force Reeds. I couldn't decide if to go with the V Force or the Rad Valve. The Rad Valve made my 01 scream. The V Force helped alot and made it a lot more snappier but it still is very weak in the low end. I have thought about going to a 50 or 51 tooth rear sprocket and a Shorty silencer. Has anyone found a pipe and silencer combo that works the best? Do the Boyeseen power valve covers do any good? They claim to add some low end but I didn't know if it was enough to justify the $50. I am trying to stay away from any moto mods and would just like a broad range of power like my 01 had. Any advice would be greatly appreciated when I log back on. Thanks and good day from Colorado.