Good post wizard, mtnickel. I am ready to use standalone if stock system cannot work. One question? Do the honeycomb air straighteners that mtnickel suggests work? My system has long runs of piping from front of intercooler to MAFs. The MAFs are 18 and 12 inches from turbos with a bend or two. Seems to work okay, but I want better. Have a good radiator and fan system, everything runs cool.
The problem my build has is inconsistency, Idles great, runs great. Next time high idle, miss at high rpm. Haven't found anything loose yet or air leaks. Perhaps air temperature differences as my intake slightly blocks my FMIC. The air entering MAFs should be cool. When car is behaving badly it seems to be a lean condition though not positive. Anyone else having these issues?