FiTech EFI system

We have had success rear-mounting the return line via this little return/bypass filter. Saves a mile of hose, and un complicates the return system.
PACE Performance - PAC-9926 - Pace Pac EFI Fuel Filter with Regulator Package
Have any knowledge of this being used with a FiTech? If so how well does it work? Any tweaks that have to be made via controller? I will have a Tanks Inc tank with 255LPH in-tank pump. Do I need a fuel pump relay?