Under slung exhaust, IT'S ALREADY THERE, LOOK AT IT. It contains two catylist, that fugly side muffler was added after the original under slung muffler was already designed and sound level regulations changed before the bike was released. So it was added to meet regulations. I bet the two pipes coming out of the under muffler were supposed to be dual tip outlets and stop there.
Oil in the swing arm? That existed on the XB because the Harley Dinosaur pushrod engine needed a separate oil tank unlike most modern engines. He put it in the swing arm so he could keep the swing arm pivot close to the engine and keep the wheel base short, otherwise the oil tank would have been in the way or would have to been mounted high. If he kept the oil in the swingarm in the 1125 and 1190 he would have added weight, complexity, several potential spots for leaks and more un-sprung weight. All for the novelty of it?
This bike is a form follows function more so then any other street legal Buell made to date. Mind you, the function portion is to haul ass and win races, the form is make it street legal.
He is a racer at heart and this is his RACE BIKE uninhibited by bureaucratic Bull ****. He didn't make this street legal to remain "Buell-ish", he made it street legal because he needs a certain amount of production bikes to be able to race in the classes he wants too. It is also a mini step in the direction of being a full blown manufacture. It also was a response to everyone wanting one of his race bikes to be street legal. It will also generate revenue for EBR to move onto bigger things (more affordable bikes for the masses and probably a naked bike)
~Mike....