fab.....I have a full 57mm Leo Vice system on my bike and,although I didn't pay full up money for it,knowing now what it does for the character of the bike I would certainly be prepared to! Anyway,as dodgy says,it IS Ducati law to have a decent exhaust
Oh,and fwiw,I recently sold my 749 Termignoni asymetric kit for £435.....Without doubt,someone did get a bargain,but it show what they can be bought for..