I have been running one for almost 2 years on my evoX with no issues. Ditched the dialy knob box and soldered a RCA plug in the end to keep it at 18.5v or whatever is max whenever it's in boost. It's a great way to get more out of the fuel system w/o having to spend money on an aftermarket rail or FPR setup which really just complicates things.
We do have the walbro 400 pump available to us now which was never an option, but if you want to make 450+whp (dyno dynamics) reliably then you gotta start making some decisions and this is an easy one.
I think I remember Shane@DB telling me that the single version is only for old mustangs and stuff with really weak stock pumps. I just bought the one he told me to get. Kai was asking me about mine and every time I just refer people to Shane as it was his idea in the first place and he usually keeps them in stock
