A local dealer has a 2001 KDX220 in excellant condition.Still has titties on the stock tires.The bike was bought from the same dealer and the buyer had it modified before ever taking it home.He then rode it a few times and then traded it in for a quad.Anyway he had the cylinder ported by Fredeette racing,FMF pipe and silencer,and jets.Everything else is stock.I've had a 220 before and I was happy with the stock engine and never thought about porting.What does it do and will I regret buying a bike that has had this done ? :ugg: