I'm interested in getting a little more HP without going with a complex system, which I came across NOS as a possible solution.
I read and watched videos on an EFI single jet 'dry' system for persons who want to keep their vehicle OEM.

A little confusing; the product (05122NOS) description says stock fuel pumps and the ECU should provide enough fuel.
But the video shows a segment about increasing the fuel amount a couple of different ways.

Is the 05122NOS the correct product for a 2.0L, horizontal 4 cylinder, high compression engine (D-4S) in my 2013 Subaru BRZ?
Or is there another part number? This engine is already dual direct and port injection. Any assistance would be appreciated.