what would a 440ex, piped, k&n, stage two hot cam, weisco 12.5:1 piston, jetted, compare too in horsepower and speed?

 

My wife has a 440 with a 11:1 piston ,pipe,jetted,cam,cdi,rectifier and i would guess that her horsepower would be in the range of 37 to 39 or so.As for how it stacks up against other quads she can take stock raptors with no problem and she can take stock yfzs and 450 r hondas but when you add pipes and proper jetting to these quads it is dependent on who gets the better start.The 440 has its limitations for performance but it can be made to be very fast considering that is has a air cooled low tech(as compared to the new 450r)motor.