for CBF250 and replacement of the old exhaust. It needed widening and quite a bit of filing on 3 out of the 4 holes for the screws, as the holes did not match the flange by 0.5~1cm. What I received was a version that did not have a single middle tongue, but rather 2 separate middle tongues that were somewhat uneven. In the end, after the modification, it was installed properly.