I've have a 00 200 with a PC pipe and silencer. The only thing I'm worried about is that I think it's a bit too loud for trail riding. I've had to put the stock silencer on as not to draw attention or offend anyone. I'm from Australia and as with you guy's from the US noise is a serious issue so I want to do the right thing coz I want to ride forever. the only time I use the PC silencer is on a mx track or at my brothers farm (but even that is starting to worry me).
Come to think of it I quite like the power of the PC pipe and the stock silencer - it seems to give it a broader spread of power. Does anyone know of an after market silencer that is actually quiet enough to go trail riding. The stocker is OK but it's bloody heavy and it looks pretty ordinary as well.....Suggestions? :think:
FMF sells a pipe called the Q. Its a S/A and supposively it is the quietest aftermarket product there is. I haven't heard one, nor do I know if they have an application for KDX's. Try giving them a call.
The biggest noise difference on my bike wasn't from changing the silencer, It was when i put the FMF pipe on. The stock double walled pipe doesn't offer all the performance advatages of an aftermarket one but it sure makes the bike quiet.