I have a complete Yoshimura Titanium Exhaust system for the 09-11 KX450f (Possibly 2012?). The header has a quarter size ding (Didn't affect performance at all), the mid pipe is perfect and the silencer is dented in on the top near the mount (Mount is solid, no cracks, mounts right up). I think the silencer could be straightened out easily (If you think you need to) by mounting it and using a broom stick or steel bar and pry it down slightly. This system Retails around $900 and used ones are selling for $500+ on Ebay. It has low hours (rough ones though) so packing is still good. I am asking $280 or best offer for this Titanium system (Super light!) Call 607-760-6956.