in that picture I only have the metal part left as I have stripped the paper circular filter off, so all oil can still go through the RM mod warmer than usual, metal part is needed in the housing to seal the top cover cap from leaking air (for non pug runners info) I have a sausage filter after the heated filter housing (keeps my sausage filter clean warm) and before IP pump.
so what I am saying is my car has had 1000's of miles driving with oil going over and around this original modded steel part of filter and when I get time I will check her out for you and take some pictures, I used to change the original filters every 3000 miles as I used to get slow down in acceleration, but not any more with the new system sausage filter... like brand new every journey. 45k on the pump and 30k on the steel filter head so should be a good indicator of the gum gum if its there, NOTE I run veg only!
