Fluid power 101, dont get those baldwin pre-filters. Use a minimum 75micron rating pre-filter. Even Aeromotive and Fuelab say the same thing in their tech sections. I have no idea why in the world so-called diesel performance shops would even remotely recommend a 4micron prefilter. That is what will burn up most pumps.
Here's a quote taken directly from Fuelab.
Fuel Pump Cavitation | Fuelab
FUELAB recommends the use of 75 micron rating for Prodigy Series fuel pumps (75-150 micron required). Typically, modern OEM straining filters are at a lower micron rating and made of plastic weave cloth. These types of filters are adequate and desirable for OEM applications, however, the typical aftermarket fuel system has too high of a flow rate to accommodate this form of straining filter easily. The biggest mistake (and almost certain doom for a high flow fuel system) is to use a 10 micron filter upstream of the fuel pump.
Plumbing size and the types of hose (or tube) play a vital role in the effects of cavitation as well general performance. The higher the flow rate, the larger the line size must be. Always avoid the use of check valves, or cross-drilled fittings when plumbing upstream of the fuel pump.