Bloody awful (IMHO...)
Underseat exhausts are a naff fashion gimmick & hoplessly compromised. The look good on 916s, KTM Dukes but NOTHING else. Underseats will be consigned to history soon enough, when every Jap factory is turning out belly-pan mounts a la KTM RC8.
This one is particularly bad; it doesn't even follow the line of the bodywork.