When I'm driving and I kick on the A/C ( which is all the time since I live in Phx) I can tell/feel a noticeable difference in power. The car still gets it but if I turn it off you can tell she's got more power. As soon as I kick it on you can feel it in the gas pedal. SUCKS

but what can I do....it's 107 here right now! You can kick on the A/C in my girls BMW and you can't tell a thing....although her car really has no get up and go to begin with. You LT4/LT1 guys noticing the same thing?