I think that the catalytic converter looks rather ugly on my Brutale 910S. I have seen that it is possible to buy a replacement link pipe that eliminates the catalytic converter. If I decide to buy this kind of pipe I will most likely buy a Power Commander too. I have a Power Commander with a custom map on my 2006 F4-1000 with race exhausts and no catalytic converter. The fuelling is so much smoother on that bike than on the Brutale where everything is stock. Has anyone done this modification to their bike and are willing to share their experience?