So you think an exhaust is meant to look pretty. Hmm, now to me that’s idiotic. I couldn’t tell you what the exhaust on my pickup, wife’s car or motorhome looks like and honestly as long it’s keeping it legal and quiet I don’t care. I’m the same with my bikes, it’s an exhaust, why people want to piss off other road users by making theirs louder is beyond me. To me that’s idiotic too. If one wants to make their bike lighter then the rider could lose a few KGs it will make a much, much bigger difference.