Hi everybody. I have a Z6 and love it. Only got about 225 miles on it. Ready to do my first oil change. I already went to the dealer and got a new "CF" filter, but it was $20. I think that's a little unreal. Does anybody know of a cheaper, easier to get replacement? I would love to be able to just walk into walmart and pick one up. The one I just bought has two part numbers on it. It says old part no:CF188-011300. It also says part no:0180-011300-0B00 Anybody got any ideas?