Hi all, and happy new year, hope 2015 is good to you, I'm going to do oil and filter change on my 2003 3.0d x5 soon, I'm also thinking of doing the pvc breather (I think it's called) will I have the sponge filter type if not been upgraded already, if it is sponge type is it just a case of buying the upgrade breather/housing and swapping them over or do I need to get a certain type to upgrade for it to fit.