I don't care about the sticker; I'd just like the computer to think and act as if everything is there so it doesn't set off codes or cause fuel mixture problems, etc. I fully understand the cost of CARB certification, but just really don't care if it is or not. Just make them work!
BTW, I would be willing to pay up to $1,000 or maybe a tiny bit more for headers, 2 high flow cats, and they extra piping to the Y-pipe.