1. Crazy filter...
I don't know what it is about these K&N filters, after I prefill them and go to install them on the bike, they rarely spill a drop out the side! Try that with OEM and you're scrubbing downpipes for like 15 minutes. Don't know how they do it, don't really care...AND you don't need a filter wrench with these ones, quick socket action and presto, feels good...