It currently has a hose routed up into the airbox. But the thing is leaking like crazy around the middle of the breather, so I figured maybe one of those shiny breathers actually had a better lasting seal or valve in them. Oh well, guess I'm ordering another original part from the dealer and waiting 3 weeks for the Italians to ship it per usual xDIt’s prettier, that’s probably about all. You need to route a hose from the breather that will prevent oil from getting on anything important, like brake pads or tires. I ran my SS breather hose vertically and put a K&N breather on the end. If I did wheelies on purpose I’d probably have routed it a little differently, but I get no oil out of it. On other bikes I’ve routed the breather to puke on the chain.