Unspecified 'Because it is used in (06 model YZF-R1') ''04 -' '06 to fit Feeling Dirt Heat discoloration Discoloration there Traces of the silencer band Yes (color fading equipped) There is a crack in a dedicated carbon steel silencer band (10 piece of the image) No serious damage was conspicuous in fall, etc. Exhaust pipe portion of the material is unknown for type line Unknown (EVOLUTIO? RACING ??) Ellipse titanium silencer warranty for one week of peace of mind