My understanding is that the AA tune already adjust the throttle response and fuel mixture... If you kept the power box, you will now increase a pre setting by a current percentage again through a piggy back system. Reminds me of when I bought a chip for a previous car where I had a shift kit in the transmission, which I forgot to mention, and now per the chip we tightened up the shift points even further and blew the tranny. Second of all, I had the powerbox, and it is nothing in comparison to the full AA tune. Sell it, pick up some cold ones, and get the full AA stage 2 with 3 stage intake and you will never look back. If my wife notices the changes, which she did day one, then something drastically must have changed!!!!!
E92 328i|6MT|AA|3 stage|MF|Res/CDV delete|HPB LED's|HID projector fogs|CC|Coding|Miro 111|275.245.19|M3 front|M3 side skirts|MTEC rear|Akrapovic C tips|FSD|C high-kick spoiler|C mirrors|C trim|LCI tails|AFE SI C|M3 arms|CYBA a-scoops|Black E trim|Black kidney's|LUX AE|HPB Rev/LP LED|BMW OEM BBK|ECS SS