hello everyone,after doing some searching on fmf rev pipe and pro curcuit it seems the rev pipe gives more top end power to the 220 and the pro curcuit pipe gives more power everywhere not just on top,so why dosen"t everyone get the pro curcuit?i need to know which will best suit my 220 before i decide which to get.i also need to know if i decide on the pro curcuit if the fmf power core 2 silencer will fit the pro curcuit pipe.i ride all types of terain,rutted woods,fast track, sand and plenty of road use.thanks to everyone who takes the time to reply.