HLA Pressure Regulator Question

[Bonecollector]

So... I have a Piston and Spring style "Lash Adjuster Oil Pressure Valve" (see attached photo for parts diagram).
Have any of you use one, and tested the pressure they are regulated at?

 

[Bstiles]

Is this the factory hla or the evo hla? Iirc, the evo hla limits pressure to 14psi and dumps the rest of the oil into the head. The kiggly hla limits to 14psi but doesn't overflow the extra into the head, it keeps it in the pan.

 

[Dashnizzle]

i took my stock one out and replaced with Kiggly for the reason mentioned above. Pretty sure you need one either way but dont quote me