01 YZ 250(2-stroke) exhaust recommendations

[Kirklandrock]

I need some feedback as to which aftermarket exhaust works best on the 01 YZ 250N.. I ride Hare Scrambles in Fla. and will be adding a Steahly Flywheel Weight at the same time as the pipe... Been considering the FMF Gnarly or Fatty....
Also need some feedback as to which silencer works best with those pipes..... PowerCore2 or PowerCore2 shorty........
Thanks
Joe