I don't know because I bought a bag years ago that are one length so I don't stack them, but they're longer than the typical packs of two. I would install one, then install 2 if that doesn't work.
But it should work *IF the rest of the exhaust doesn't have leaks.
What does "I cannot get the 02 ready to be ready" mean? Is the check engine light still on? Is the P0420 still on?
Or are you talking about the monitors that need populated after a reset?
It's not a 1996 vehicle or ECU right? I thought you were talking about 01-02 vehicle/engines.
You've been here long enough you should be psychic by now, the Matrix must have a glitch.
He started another topic recently and private messaged me, so I've been following a long a tiny bit.