My 999BP has started making a loud rattling noise from the exhaust (standard pipes) every time I blip the throttle. At idle it's quiet, but when you blip it it makes quite a loud rattle that sounds frankly embarassing.
Anyone know what this could be? Should I be worried? I'm about to change the pipe soon to some loud ones anyway, but I'm worried it is something more than just the exhaust. I've done 13k miles, and its a 2002 model, last serviced 9 months ago (a big one). Maybe the cat is coming apart?!
Any help greatly appreciated
