I know I need something that looks like cats b/c of the mirror, but since the rear o2's can be turned off, it's irrelevant whether or not the car has cats. When a scan tool is hooked up to the obd port and checked for readiness, the o2's should show ready. This is as simple as changing a "0" to a "1" in the correct table once the ecu address is found. I have always open source tuned, so I modded the ecu's tables myself through xml on a laptop. I'm guessing sct and diablo take a lot of the advanced features away (haven't bought on for my gt yet), but it would be nice to know if we can force the o2 readiness for emissions.
Actually this is not true, it depends on what state. You can only get away with that trick in a few states anymore.
With the o2's ready, but no cats, would it actually pass the test. It doesn't just look for readiness, correct?
Depends on which state. For TX, not sure. Since a stock midpipe bolts right up to our kit, I think it would be much easier to just put a stock pipe on and ACTUALLY pass instead of trying to cheat. lol
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