no regulator needed. are you running that pump alone or in conjunction with the stock pump? i wouldnt recomend running that deal at all. its a temporary bandaid for a problem. your better off with a fuel system like airdog,fass.eliminator,glacier
I third pitching the Blue before you buy it. I went down that road and got a few months out of it before the pressure got flaky and started to worry me(the blue didn't like cold thick winter diesel). I ended up buying another factory pump and just relocated it to under the bed(I carry 19 at idle and 14 at wide open throttle) and it's alot cheaper than the other route
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