I got a ton of knock when I went to an ET TMIC running just that and a CAI. I bought step colder plugs, and it went away.
Are you getting a boost leak with the FMIC? I missed that post. What does it go to before it drops? The reason being, I have a mystery leak. Sold TMIC, swapped BOV to a Forge. Spikes to 16 or so, drops quick to 14, then slowly bleeds down when doing 6th gear pulls. I am using an electronic boost gauge, and even replaced all the vacuum lines. Don't want to jack the thread, but I am wondering if the problem is elsewhere other than the FMIC.