Ordered AD2 from IDP yesterday and have been doing some reading on the install. Claims to be primarily plug-n-play. But I'm confused on a couple of things. Looking for input from guys who have installed them on their trucks.

I have 3 ?s:

#1 - The new AD2 has an internal adjustable fuel pressure regulator. Do I remove the HPCM OEM fuel pressure regulator located in the engine mounted fuel filter assembly?

#2 - When the AD2 is installed the HPCM is completely removed. The HPCM has 4 lines connected to it: fuel inlet, fuel outlet, engine fuel return and fuel tank return. I undertand the fuel return lines that connect to the HPCM are just pass through connections. So when I install the AD2 I will connect the fuel inlet, fuel outlet and fuel tank return. From what I have read the engine fuel return will not be used and must be blocked off at the engine fuel filter and the HPCM. Is this true?

#3 - The AD2 fuel filter is, I believe, a 5 micron. Do I need to keep the OEM engine mounted fuel filter or can I delete it? Removing it would reduce some fuel pressure drop.

Any info would be appreciated. Just trying to get my ducks in a row before I start the install.

DSMMH