my.02 cents, i put a se cleaner on my 05 fxdli, because the slipons were after market the wouldn't do the reprogram on the ecm. i tried the hd race fueler with dealer dyno and set up, not all happy. purchased and installed a techlusion dfo. using their settings, the bike really rips for a "stock" motor. if you are going to upgrade the moor at all then you may want to consider a sert or pcIII. the se air cleaner is non-oiled paper filter. a replacement K&N was a HD-0800 from autozone, about 45.00 dollars. i used black bbq grill paint on the ac mount plate to blend with the black motor. your call and your budget. myself, weenies go good with beans, love the extras.