Thanks for the feedback guys! I'm definitely going to try out that 02 simulator with the mini cat in it, that should do the trick. I just need something that will last me a little over 100 miles (after the ecu does its cycle for smog), then i'll take it right off. As for the rear 02's, would hanging them with zip ties out of the pipe also work?
No, it is not that easy. The rears have to read a certain difference from the fronts. Throwing them out in the air probably won't meet that parameter. If you can figure out the parameters for the difference necessary that the computer needs to read ready then you can wire something in. I have a different motor and computer but this is what I did to fool the computer. It is a resister to step down the voltage and a capacitor to get it to the right signal frequency. I tapped the front signal wire and ran it through this to the rear signal wire to simulate the changes needed. I still change tunes to turn the sensors on but I don't have to get under there and swap pipes like I used to. It reads ready every time I go to get it tested.