Not really looking at improving overall performance of truck, but these fuel filter changes are killing me, between 130 and 160 dollars in parts each time. So I was wondering what is the consensus on the FASS fuel system, I mean the filters are less than 30 and after 60k miles it will have paid for itself in parts and labor. So what does everybody think are they as good as factory filtration and at providing fuel to the injector pump.