I'm surprised you still have a stock lift pump. Many people think they have a stock lift pump but actually have the in tank replacement.
Yep, first upgrade I did on my 5.9. Not because I was thinking ahead like you, mine just quit period. I went with FASS system, but I couldn't tell you which is better FASS or FRRP. I've had zero problems since 2006. I just change filters when I'm supposed to.
I didn't put in a fuel pressure gauge but installed a little LED that lights up when pressure is less than 7 psi. The fuel system gets to expensive not to have something to let you know if not enough fuel is being delivered. They don't give away those VP44's.
Whatever you get save the paper work at home and make a copy of filter cross overs. My FASS has a listing of filters and micron levels that cross reference to fleet guard and other filter manufactures. When I buy filters (at Cummins) those numbers become important because if Cummins doesn't have them on the shelf they want to special order them and special ordering filters is only buy the case at my local dealer. I usually buy 2 at a time. That is because their filters used to be packaged loose in a box. But last couple years their filters have been packaged with a plastic bag inside the box. So no more worries about moisture problems getting to the filter before I use it. And changing filters is real easy.
Don't remember the price and I had some gauges put in at same time. Pyro, trans and boost. Pyro is one of the most handiest. I always cool down my turbo using the pyro before shutting it off. Trans has only been above 200 degrees 3 times.
