I just bought a 08 KFX450R. its all stock. and only been rode maybe 8 hours... But this thing is weak.. It cant even compare to my YFZ450 or my buddies 450R honda. This thing should not even be called a 450 if its gonna be this slow!
I dont think a pipe and programmer and fliter can help one out that much???

PLEASE LET ME KNOW WHAT WILL HELP THIS THING COME ALIVE!!! without having to do motorwork, cause i dont want to build it or tare it down while its new!

If i cant get this thing running with the yfz ill just stick with my YFZ450 and sale KFX450.

THANKS FOR ANY HELP GUYS!!!!
tell me what has worked for you or if anyone else has had this problem with these bikes!!