There are some people claiming they modify 044's for better performance...who knows.

But flow claims for 044's vary from seller to seller...country to country.

Either way, I wouldnt risk my setup to un unknown, unbranded fuel pump.

They also dont offer any test voltage. But their results dont look much different to what I tested my dual 044 setup as, except mine was fully installed. ( dividing results by 2 of course )

at 60psi, 1/2 of my results would indicate 243 lph at 13.1 volts for a regular 044 through my entire fuel system, and measured out the return.

SO I dont see anything special about their pumps.