I just installed the black dimond intake on a buddies 09 m8 and with a adjustable fuel regulator and so far so good no problems at all. In fact it's running realy good. And by the way we are running at 0 to 3000 foot elevation hear in Alaska. Just what we are doing here and whats working for us.
Thanks for all the answers guys. Happy to know that they are working well. I was in the middle of installing it and this thought came into my mind like "I sure hope that this thing doesn't need a fuel controller at all..."
My buddy runs speedwerx pipe, can, bdx intake, with no controller, and theres no problem, I'm running a slp pipe kit and bdx intake on a 09 hcr, runs awsome.