Thanks for the info and recos, guys. I'm saving my $$ right now!

Then I can get rid of the stock MAF too! Can the Hydra be set up to run two different maps (ignition and fuel) that could be switched while running? I'm setting up a water injection system and I want the new EMS to run two different maps based on if there is water pressure in the injection system.
I imagine it can be set up with a wide band O2 sensor? I would most likely be tuning it myself.
Thanks again.