I'll have to check the garage for it. When I swapped to the 07 fuel pump the filter came built into the fuel pump assy so I know I have one from a MY02 wrx, I just have to find it. I'll get back to you tomorrow with the results, recently moved and stuff is everywhere
No integration for the fuel lines, I think I remember there being a plastic clip that attached the top of the filter to a fuel line . . .