Sold my 04 YFZ450 and purchased a low hour 05 blue Banshee. I used to ride piped Banshees in the early 90's and I couldn't stand it no longer. All my buddies have YFZ450s, 450rs, 660 Raptors, and a 525 Polaris Outlaw. (I wanted to be different) They think Banshees are out dated and slow. I currently have my cylinders at F.A.S.T. racing and I am having the dune port job installed. I am installing +4 timing, cool head with either 20cc or 21cc domes, V-force 3s, 13 tooth front sprocket, Wicked a arms, G-force axle, shocks, stock carbs, and stock stroke crank (pump gas). We ride mostly at Little Sahara OK and on my 160 acre farm. I think I am at about 1300 feet. I don't intend on having my buddies hand me my ass. Will this do the job???? Thanks for any input-Gshock