I am currently fitting a BWJ K04 engine in my Mk1 Golf Gti, I am thinking about buying a Loba pump, is there any advantage of fitting an RS4 fuel valve with this or does it come with one?
Also, my current lift pump is good for 10 Bar and I have an adjustable fuel pressure regulator, will this be ok or should I get a Genuine fuel filter with the built in Regulator?