I just purchased a 02 WR26F Canadian, I haven't received it yet. I have searched the posts but haven't found the info I am looking for. I have read that the exhaust is sealed. That I understood. My question is whether or not it is any good. Some people say they like it and it is less restrictive than the US. Some say that it is trash and recommend an aftermarket exhaust. What aftermarket exhaust would you buy. Do I need the whole pipe or just the muffler.