After looking at the various installs of both the FASS and Airdog I decided to go with the FASS. On my coach I had enough room to mount near the fuel tank making the Return To Tank line easy to run along with the Tank line, and then using the existing fuel line from the FASS pump. Also, the stock wiring harness was an easy install in my front drivers side run bay, I was able to pick an ignition source and chassis battery source there to make for a clean install. I liked the idea of pumping & filter fuel back to tank for polishing.
Could have done something else but I decided if I was going to do it I wouldn't cut any corners.
I have the fittings and relay on order to bypass the OEM lift pump. Mine started to leak late last year, I tightened the 3 bolts but I know this was a short term fix.
I also have parts on order to install a fuel pressure gauge, seems logical to be able to monitor the fuel pressure to the CAPS since I'm doing the FASS install.
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi