No codes, no Check Engine Light. The dealer said that everything appears fine
Power loss I assume is at all rpms, but especially noticeable at the higher ones. You guys know how the car kinda kicks you back at a certain point during accelleration? Well there is no kick, it stays pretty much steady. So basically, that nice feeling you get during accelleration is gone...sorta feels like a 4 cylinder, ha ha. But yah, sounds a lot louder and significantly strained. The dealership has given me a logger and I'm to hit a button everytime it does it, which I did last night, but they are so stupidly busy they won't be able to look at the data until Monday. And even then I'm losing more and more faith in them...
Any other possibilities would be great...!!

-Joel