I'm about to do the oil change on my Maserati, and this is the filter used for it. It costs almost $100, so I'm very curious to know just what the heck this thing is. Also would like to know if I can find some reasonable alternatives for the post-warranty period. Right now, I'll stick with their highway robbery, but no good reason to after the warranty is out (assuming I still have this car). Only thing I have learned about it so far is that when you buy them, you will find oil in them due to being pressure tested at the factory.