I recently purchased 2000 WR400 and sadly was only able to ride it a few times before the winter weather set in,but I have never instantly liked any bike as much as this one.I have always enjoyed 2 strokes over 4, having owned(and loved)KDX 200,250,220's and most recently a '97 WR250. The last 4 stroke I owned was a '96 KLX250,and between jumping out of second gear and hard starting when hot,it left a bad taste in my mouth.This WR400 is much tastier! Reading all the comments on this owner's forum helped my purchase decision - Thanks guys! I do have a few questions that hopefully someone can help me with.I understand that my Canadian WR does not require the throttle stop mod,and I have read that changing to YZ spec cam timing is not required.Is this true? I also was wondering if anyone has tried any aftermarket pipes that are as quiet,or close to as quiet as my stock Canadian (non-removable baffle)exhaust.What I want is less weight,and more performance,without an obnoxious exhaust note.Even in Canada land closures are a reality with noise being the most common complaint.Less sound=More ground!