No Check Engine Light? You could have a spark issue, but then you'd have a check engine light. I'm going to jump on and say it before someone else says it negatively. It's not really a good idea to have the AEM Cold-Air intake, because of the lean condition it causes with the MAF sensor right after the bend out of the fender. The BOV could be leaking, but I think you'd hear that if the turbo were spooling and leaking out of that, but everyone here will tell you to take that off too, but you can choose on that one if decreased performance, running a little rich and potentially destroying your catalytic converter prematurely from that rich condition are worth the sound. . . Anyway, now that that's said. . . Maybe a vacuum leak which is making the wastegate not function properly (stuck open), or it could also be other things that everyone else will need to help out with. I'd check the wastegate duty first, which can be checked by hooking up a vacuum line to the wastegate line and it should pull around 7-8 lbs of boost. Do you have a gauge? AccessPort? Those would be helpful. Anyway if you need to check it out, PM RcrsWetDream, as he actually knows what he's talking about with checking the wastegate. Good luck, man! Remember to give us an update when it's all figured out.