ok i just got a 2006 kfx400 with probabl 5 hours......and idk but it feels like theres just no motor in it......its not nearly as tourquy as i thought and ive ridden a z400 and thought it had tons......and its very quiet.......r all stock kfx's or z's quiet? shouldnt it be throaty?.....well im planning on getting the looney tune dual pipes for it to fix the noise probablem and hopefully make it feel like a 400........any opinions would be appriciated......thanx

 

please someone give me their 2cents....thanks

 

Hard to comment on. Go to your dealer and try another new stock machine.