I get 20% discount at local Yamaha dealer, so I picked up a few OEM filters when I bought the bike.
Dealer did 600 miles service, but I had a **** of the time getting old filter off, (had to use screwdriver to punch a hole to get it off), which makes me wonder if they even changed oil at all. (after 4k miles oil was dark)
I will never have dealer do anything but warranty work from here on.
My anger management class really pisses me off.